It was just over a week ago that we revealed to you the Cigarette 42 Huntress inspired by the Mercedes G63 AMG, and while we were certain at the time that it couldn’t get any better than that pair, today Mercedes AMG revealed their latest collaboration with Cigarette racing. This may be the best pairing yet – the SLS AMG Coupe Electric Drive and the Cigarette AMG Electric Drive Concept Boat (a match made in heaven for electric lovers).

Mercedes-AMG and Cigarette Racing are launching the latest development of their cooperation at the Miami International Boat Show that kicked off today. Numerous components from the SLS AMG Coupè Electric Drive have been integrated in the design of the “Cigarette AMG Electric Drive Concept” engineering design. The high-performance drive fitted in the electric super sports car makes the off-shore powerboat the world’s most powerful and fastest electrically driven motor boat. With an output of 1656 Kilowatts (2,220hp) and a maximum torque of 3000 Newton metres (2,213 ft-lb,) the “Cigarette AMG Electric Drive Concept” is a fascinating new development.

SLS AMG Coupe Electric Drive Cigarette Boat

Inspiration for the drive was very close to home for the US-American company, with the SLS AMG Coupè Electric Drive being the world’s most powerful and fastest electrically driven series production vehicle in America. The technology, performance and design of the Cigarette powerboat is closely based on the electric super sports vehicle made in Affalterbach, Germany. This joint project underlines the technology leadership earned by Mercedes-AMG and Cigarette Racing.

The 38 foot (11.6 metre) long “Cigarette AMG Electric Drive Concept” powerboat is finished in “AMG Electricbeam magno” – the matt chrome paintwork exclusively reserved for the SLS AMG Coupe Electric Drive. Proudly wearing AMG logos on the side, the powerboat is a clear sign of the alliance between the Miami-based boat manufacturer and Mercedes-AMG GmbH from Affalterbach, Germany. The design features also exemplify the transfer of technology from the gullwing to the powerboat. Mercedes-AMG uses two drive units, each featuring six independent electric motors. At the rear of the boat, each drive unit has its own transmission, one on the left and one on the right. A glance at the engine data proves that the boat is fitted with the twelve compact, liquid-cooled permanent-magnet synchronous electric motors which are the signature piece of the SLS AMG Coupè Electric Drive: each electric motor delivers 138 kW and 250 Newton metres. The maximum output of 1656 Kilowatts and maximum torque of 3000 Newton metres combine to reach a staggering top speed of over 160 km/h making this locally emission-free “Cigarette AMG Electric Drive Concept” the world’s fastest electrically driven powerboat. In keeping with the SLS AMG Coupè Electric Drive, the motors and the battery are ideally placed in the “Cigarette AMG Electric Drive Concept”. The low centre of gravity and optimum weight distribution ensure sublime handling characteristics during more dynamic changes of direction.

SLS AMG Coupe Electric Drive Cigarette Boat

The vital statistics at a glance:

SLS AMG Coupè Electric Drive

• Maximum output 552 kW
• Torque 1000 Nm
• Maximum speed 250 km/h* (155 mph)
• Battery energy content 60 kWh
• Battery voltage 400 Volt
• CO2 emissions 0 g/km

Cigarette AMG Electric Drive Concept **

• Maximum output 1656 kW (2,220 hp)
• Torque 3000 Nm (2,213 ft-lb)
• Maximum speed over 160 km/h (99.4 mph!)
• Battery energy content 240 kWh
• Battery voltage 400 Volt
• CO2 emissions 0 g/km

*electronic restriction; **preliminary data

High-tech from Formula 1: the lithium-ion high-voltage battery

Battery efficiency, performance and weight: in all three areas Mercedes-AMG is setting new standards. The high-voltage battery in the SLS AMG Coupe Electric Drive boasts an energy content of 60 Kilowatt hours, an electric load potential of 600 Kilowatts and a weight of 548 kg – all of which are absolute best values in the automotive sector. The liquid-cooled lithium-ion high-voltage battery features a modular design with a maximum voltage of 400 V. It consists of 12 modules each comprising 72 lithium-ion cells. Cigarette integrates four high-tech batteries with a total of 48 modules and 3456 cells which generate a total capacity of 240 Kilowatt hours and an electric output of 2400 Kilowatts – benchmark figures that earn respect even in the boat building industry.

Advanced technology and know-how from the world of Formula 1 have been called on during battery development: the battery is the result of the cooperation between Mercedes-AMG GmbH in Affalterbach and Mercedes AMG High Performance Powertrains Ltd. With their headquarters in Brixworth, England, the company has been working closely with Mercedes-AMG for a number of years.

The “Cigarette AMG Electric Drive Concept” is fitted with two 22-Kilowatt on-board chargers from the SLS AMG Coupe Electric Drive as standard. Adapted to fit the infrastructure standard of many American marinas, the boat has a charging capacity of 44 Kilowatts. The battery is fully charged in approximately seven hours. To reduce the charging time to less than three hours, the powerboat can be fitted with four on-board chargers as an option.

SLS AMG Coupe Electric Drive Cigarette Boat

Design, fittings and cockpit with signature AMG elements

Design and fittings reflect the dynamic characteristics of the “Cigarette AMG Electric Drive Concept”. The signature Cigarette Racing sports seats are matched with various carbon elements in the cockpit. The display concept of the SLS AMG Coupe Electric Drive can also be found behind the steering wheel: fitted with dials in the exclusive “AMG Electricbeam magno” paint finish and sporting AMG logos, the displays provide information about the current motor output, the speed, battery voltage and of course the battery’s state of charge.

Alliance between Mercedes-AMG and Cigarette Racing since 2007

Mercedes-AMG and Cigarette Racing have been collaborating since 2007, primarily for organising joint customer and marketing activities. Results of this cooperation were witnessed with the launch of two exclusive powerboats in 2010 and 2012. The “46′ Rider Inspired by AMG” was the premiere: the technology, design and equipment were heavily based on the SLS AMG gullwing launched in 2009. The “Inspired by AMG Black Series 50′ Marauder” followed in 2012 – a powerboat significantly inspired by the C 63 AMG Coupe Black Series.

Whether on land or water: performance is what unites Mercedes-AMG and Cigarette Racing. Similar to its Mercedes-AMG super sports counterpart, the 38 to 55 feet (11.6 to 16.8 metres) long powerboat from the American specialists is amongst the world’s fastest and most exclusive machines. Their boats boast custom-made, hand-crafted quality for enthusiasts and are tested under extreme conditions. Mercedes-AMG and Cigarette Racing also have similar DNA makeups: both companies owe their roots to racing and are still dedicated to this passion.

Source: Cigarette Racing

A huge surprise at the 2012 Paris Motor Show was the SLS AMG Coupé Electric Drive, proving that Mercedes-AMG is entering a new era. The locally emission-free super sports car featurs advanced technology from the world of Formula 1 and is the most exclusive and dynamic way in which to drive an electric car. The most powerful AMG high-performance vehicle of all time, the SLS AMG Coupe Electic Drive has four electric motors producing a total output of 552 kW and a maximum torque of 1000 Nm, resulting in a 0-62 mph sprint in 3.9 seconds.  The cost for the SLS AMG Coupe and its one of a kind electric drive, 416,500 Euros ($538,326 based on 9/28/12), with gas prices hitting nearly $5.00 a gallon in California this week, the savings will pile up very quickly.

A new dimension of driving performance – a convincing synonym for the AMG brand promise are the outstanding driving dynamics which come courtesy of AMG Torque Dynamics as well as torque distribution to individual wheels, which is made possible by means of wheel-selective all-wheel drive. The most “electrifying” gullwing model ever has been developed in-house by Mercedes-AMG GmbH. The high-voltage battery for the SLS AMG Coupé Electric Drive is the result of cooperation between Mercedes-AMG and Mercedes AMG High Performance Powertrains in Brixworth (GB). This is an area in which the British Formula 1 experts were able to contribute their extensive know-how with KERS hybrid concepts.

“The SLS AMG Coupé Electric Drive is setting new standards for cars with electric drives. As the most powerful gullwing model ever, it is also representative of the enduring innovational strength of Mercedes-AMG. Our vision of the most dynamic electric vehicle has become a reality. With the help of our colleagues at Mercedes AMG High Performance Powertrains in Brixworth, we are bringing exciting advanced technology from the world of Formula 1 to the road”, according to Ola Källenius, Chairman of the Board of Management of Mercedes-AMG GmbH.

Pioneering, visionary, electrifying: the powerful and locally emission-free super sports car with electric drive also embodies the development competence of Mercedes-AMG GmbH. With this innovative and unique drive solution, AMG – as the performance brand of Mercedes-Benz – is demonstrating its technological leadership in this segment. The SLS AMG Coupé Electric Drive is aimed at technology-minded super sports car fans who are open to new ideas and enthusiastic about ambitious high-tech solutions for the future of motoring.

Enormous thrust thanks to 1000 Nm of torque

The pioneering drive package in the SLS AMG Coupé Electric Drive is impressive and guarantees a completely innovative and electrifying driving experience: enormous thrust comes courtesy of four synchronous electric motors providing a combined maximum output of 552 kW and maximum torque of 1000 Nm. The very special gullwing model accelerates from zero to 100 km/h in 3.9 seconds, and can reach a top speed of 250 km/h (electronically limited). The agile response to accelerator pedal input and the linear power output provide pure excitement: unlike with a combustion engine, the build-up of torque is instantaneous with electric motors – maximum torque is effectively available from a standstill. The spontaneous build-up of torque and the forceful power delivery without any interruption of tractive power are combined with completely vibration-free engine running characteristics.

The four compact permanent-magnet synchronous electric motors, each weighing 45 kg, achieve a maximum individual speed of 13,000 rpm and in each case drive the 4 wheels selectively via a axially-arranged transmission design. This enables the unique distribution of torque to individual wheels, which would normally only be possible with wheel hub motors which have the disadvantage of generating considerable unsprung masses.

The key data at a glance:

Typical AMG: the sound of the 21st century

Powerful, voluminous, dynamic, emotional and authentic: the characteristic sound of the SLS AMG Coupé Electric Drive embodies the sound of the 21st century. After an elaborate series of tests as well as numerous test drives, the AMG experts have created a sound which captures the exceptional dynamism of this unique super sports car with electric drive. Starting with a characteristic start-up sound, which rings out on pressing the “Power” button on the AMG DRIVE UNIT, the occupants can experience a tailor-made driving sound for each driving situation: incredibly dynamic when accelerating, subdued when cruising and as equally characteristic during recuperation. The sound is not only dependent on road speed, engine speed and load conditions, but also reflects the driving situation and the vehicle’s operating state with a suitable driving noise. Perfect feedback for the driver is guaranteed thanks to a combination of the composed sound, the use of the vehicle’s existing inherent noises and the elimination of background noise – this is referred to by the experts as “sound cleaning”. The impressive sound comes courtesy of the standard sound system with eleven loudspeakers.

Advanced Formula 1 technology: high-voltage lithium-ion battery

Battery efficiency, performance and weight: in all three areas Mercedes-AMG is setting new standards. The high-voltage battery in the SLS AMG Coupé Electric Drive boasts an energy content of 60 kWh, an electric load potential of 600 kW and weighs 548 kg – all of which are absolute best values in the automotive sector. The liquid-cooled lithium-ion high-voltage battery features a modular design and a maximum voltage of 400 V.

Advanced technology and know-how from the world of Formula 1 have been called on during both the development and production stages: the battery is the first result of the cooperation between Mercedes-AMG GmbH in Affalterbach and Mercedes AMG High Performance Powertrains Ltd. Headquartered in Brixworth in England, the company has been working closely with Mercedes-AMG for a number of years. F1 engine experts have benefited from its extensive expertise with the KERS hybrid concept, which made its debut in the 2009 Formula 1 season. At the Hungarian Grand Prix in 2009, Lewis Hamilton achieved the first historic victory for a Formula 1 vehicle featuring KERS hybrid technology in the form of the Mercedes-Benz KER System. Mercedes AMG High Performance Powertrains supplies the Formula 1 teams MERCEDES AMG PETRONAS, Vodafone McLaren Mercedes and Sahara Force India with Mercedes V8 engines and the KERS.

The high-voltage battery consists of 12 modules each comprising 72 lithium-ion cells. This optimised arrangement of a total of 864 cells has benefits not only in terms of best use of the installation space, but also in terms of performance. One technical feature is the intelligent parallel circuit of the individual battery modules – this helps to maximise the safety, reliability and service life of the battery. As in Formula 1, the battery is charged by means of targeted recuperation during deceleration whilst the car is being driven.

High-performance control as well as effective cooling of all components

A high-performance electronic control system converts the direct current from the high-voltage battery into the three-phase alternating current which is required for the synchronous motors and regulates the energy flow for all operating conditions. Two low-temperature cooling circuits ensure that the four electric motors and the power electronics are maintained at an even operating temperature. A separate low-temperature circuit is responsible for cooling the high-voltage lithium-ion battery. In low external temperatures, the battery is quickly brought up to optimum operating temperature with the aid of an electric heating element. In extremely high external temperatures, the cooling circuit for the battery can be additionally boosted with the aid of the air conditioning. This also helps to preserve the overall service life of the battery system.

Quick charge function via special wall box

Ideally the SLS AMG Coupé Electric Drive is charged with the aid of a so-called wall box. Installed in a home garage, this technology provides a 22 kW quick-charge function, which is the same as the charging performance available at a public charging station. A high-voltage power cable is used to connect the vehicle to the wall box, and enables charging to take place in around three hours. Without the wall box, charging takes around 20 hours. The wall box is provided as an optional extra from Mercedes-AMG in cooperation with SPX and KEBA, two suppliers of innovative electric charging infrastructures for the automotive industry.

Eight-stage design for maximum safety

To ensure maximum safety, the SLS AMG Coupé Electric Drive makes use of an eight-stage safety design. This comprises the following features:

1. all high-voltage cables are colour-coded in orange to prevent confusion

2. comprehensive contact protection for the entire high-voltage system

3. the lithium-ion battery is liquid-cooled and accommodated in a high-strength aluminium housing within the carbon-fibre zero-intrusion cell

4. conductive separation of the high-voltage and low-voltage networks within the vehicle and integration of an interlock switch

5. active and passive discharging of the high-voltage system when the ignition is switched to “off”

6. in the event of an accident, the high-voltage system is switched off within fractions of a second

7. continuous monitoring of the high-voltage system for short circuits with potential compensation and insulation monitors

8. redundant monitoring function for the all-wheel drive system with torque control for individual wheels, via several control units using a variety of software

By using this design, Mercedes-AMG ensures maximum safety during production of the vehicle and also during maintenance and repair work. Of course the SLS AMG Coupé Electric Drive also meets all of the statutory and internal Mercedes crash test requirements.

All-wheel drive with AMG Torque Dynamics enables new levels of freedom

Four motors, four wheels – the intelligent and permanent all-wheel drive of the SLS AMG Coupé Electric Drive guarantees driving dynamics at the highest level, while at the same time providing the best possible active safety. Optimum traction of the four driven wheels is therefore ensured, whatever the weather conditions. According to the developers, the term “Torque Dynamics” refers to individual control of the electric motors, something which enables completely new levels of freedom to be achieved. The AMG Torque Dynamics feature is permanently active and allows for selective distribution of forces for each individual wheel. The intelligent distribution of drive torque greatly benefits driving dynamics, handling, driving safety and ride comfort. Each individual wheel can be both electrically driven and electrically braked, depending on the driving conditions, thus helping to:

• optimise the vehicle’s cornering properties
• reduce the tendency to oversteer/understeer
• increase the yaw damping of the basic vehicle
• reduce the steering effort and steering angle required
• increase traction
• and minimise ESP® and ASR intervention

The AMG Torque Dynamics feature boasts a great deal of variability and individuality by offering three different transmission modes:

• Comfort (C): comfortable, forgiving driving characteristics
• Sport (S): sporty, balanced driving characteristics
• Sport plus (S+): sporty, agile driving characteristics

AMG Torque Dynamics enables optimum use of the adhesion potential between the tyres and the road surface in all driving conditions. The technology allows maximum levels of freedom and as such optimum use of the critical limits of the vehicle’s driving dynamics. Outstanding handling safety is always assured thanks to the two-stage Electronic Stability Program ESP®.

“AMG Lightweight Performance” design strategy

The trailblazing body shell structure of the SLS AMG Coupé Electric Drive is part of the ambitious “AMG Lightweight Performance” design strategy. The battery is located within a carbon-fibre monocoque which forms an integral part of the gullwing model and acts as its “spine”. The monocoque housing is firmly bolted and bonded to the aluminium spaceframe body. The fibre composite materials have their roots in the world of Formula 1, among other areas. The advantages of CFRP (carbon-fibre reinforced plastic) were exploited by the Mercedes-AMG engineers in the design of the monocoque. These include their high strength, which makes it possible to create extremely rigid structures in terms of torsion and bending, excellent crash performance and low weight. Carbon-fibre components are up to 50 percent lighter than comparable steel ones, yet retain the same level of stability. Compared with aluminium, the weight saving is still around 30 percent, while the material is considerably thinner. The weight advantages achieved through the carbon-fibre battery monocoque are reflected in the agility of the SLS AMG Coupé Electric Drive and, in conjunction with the wheel-selective four-wheel drive system, ensure true driving enjoyment. The carbon-fibre battery monocoque is, in addition, conceived as a “zero intrusion cell” in order to meet the very highest expectations in terms of crash safety. It protects the battery modules inside the vehicle from deformation or damage in the event of a crash.

The basis for CFRP construction is provided by fine carbon fibres, ten times thinner than a human hair. A length of this innovative fibre reaching from here to the moon would weigh a mere 25 grams. Between 1000 and 24,000 of these fibres are used to form individual strands. Machines then weave and sew them into fibre mats several layers thick, which can be moulded into three-dimensional shapes. When injected with liquid synthetic resin, this hardens to give the desired structure its final shape and stability.

Optimum weight distribution and low centre of gravity

The purely electric drive system was factored into the equation as early as the concept phase when the super sports car was being developed. It is ideally packaged for the integration of the high-performance, zero-emission technology: by way of example, the four electric motors and the two transmissions can be positioned as close to the four wheels as possible and very low down in the vehicle. The same applies to the modular high-voltage battery. Advantages of this solution include the vehicle’s low centre of gravity and balanced weight distribution – ideal conditions for optimum handling, which the electrically-powered gullwing model shares with its petrol-driven sister model.

New front axle design with pushrod damper struts

The additional front-wheel drive called for a newly designed front axle: unlike the series production vehicle with AMG V8 engine, which has a double wishbone axle, the SLS AMG Coupé Electric Drive features an independent multi-link suspension with pushrod damper struts. This is because the vertically-arranged damper struts had to make way for the additional drive shafts. As is usual in a wide variety of racing vehicles, horizontal damper struts are now used, which are operated via separate push rods and transfer levers. Thanks to this sophisticated front-axle design, which has already been tried and tested in the world of motorsport, the agility and driving dynamics of the SLS AMG Coupé Electric Drive attain the same high levels as the V8 variant. Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

AMG ceramic composite brakes for perfect deceleration

The SLS AMG Coupé Electric Drive is slowed with the aid of AMG high-performance ceramic composite brakes, which boast direct brake response, a precise actuation point and outstanding fade resistance, even in extreme operating conditions. The over-sized discs – measuring 402 x 39 mm at the front and 360 x 32 mm at the rear – are made of carbon fibre-strengthened ceramic, feature an integral design all round and are connected to an aluminium bowl in a radially floating arrangement.

The ceramic brake discs are 40 percent lighter in weight than the conventional, grey cast iron brake discs. The reduction in unsprung masses not only improves handling dynamics and agility, but also ride comfort and tyre grip. The lower rotating masses at the front axle also ensure a more direct steering response – which is particularly noticeable when taking motorway bends at high speed.

Exclusive, high-quality design and appointments

Visually, the multi-award-winning design of the SLS AMG is combined with a number of specific features which are exclusive to the Electric Drive variant. The front apron has a striking carbon-look CFRP front splitter which generates downforce on the front axle. The radiator grille and adjacent air intakes adorn special areas painted in the vehicle colour and with bionic honeycomb-shaped openings. They are not only a visual highlight but, thanks to their aerodynamically optimised design, also improve air flow over the cooling modules mounted behind them. Darkened headlamps also impart a sense of independence to the front section. Viewed from the side, the “Electric Drive” lettering stands out on the vehicle side, as do the AMG 5-twin-spoke light-alloy wheels with their specific paint design. The SLS AMG Electric Drive comes as standard with 265/35 R 19 tyres on the front and 295/30 R 20 tyres on the rear. The overall look is rounded off to dynamic effect by the new diffuser-look rear apron, and the darkened rear lamps. One feature reserved exclusively for the SLS AMG Coupé Electric Drive is the “AMG electricbeam magno” matt paint finish. A choice of five other colours is available at no extra cost.

When the exterior colour AMG electricbeam magno is chosen, the high-quality, sporty interior makes use of this body colour for the contrasting stitching – the stitching co-ordinates perfectly with designo black Exclusive leather appointments. AMG sports seats and numerous carbon-fibre trim elements in the interior underscore the exclusive and dynamic character of what is currently the fastest electric car. Behind the new AMG Performance steering wheel there is a newly designed AMG instrument cluster: instead of a rev counter, there is a power display providing information on the power requirements, recuperation status, transmission modes and battery charge.

AMG Performance Media as standard

The AMG DRIVE UNIT comprises the electronic rotary switch for selecting the three transmission modes of “C” (Controlled Efficiency), “S” (Sport) and “S+” (Sport plus), which the driver can use to specify different performance levels from the electric motors, which in turn also changes the top speed and accelerator pedal response. Behind the buttons for “power” and “ESP On/Off”, there are also buttons for AMG Torque Dynamics and AMG Setup.

In addition to carbon-fibre exterior mirrors, AMG carbon-fibre engine compartment cover, COMAND APS, Media Interface, Blind Spot Assist and reversing camera, the standard equipment also includes the AMG Performance Media system. Besides full high-speed mobile internet access, the system provides information on engine performance, lateral and longitudinal acceleration, tyre pressure, vehicle setup and lap times, as well displaying a variety of additional information such as:

• vehicle energy flow
• battery charge status
• burrent range
• AMG Torque Dynamics
• temperatures of the battery and motors
• energy consumption kWh/100 km

The Mercedes-Benz SLS AMG Coupé Electric Drive will be celebrating its market launch in 2013. The price in Germany (incl. 19% VAT) will be:

SLS AMG Coupé Electric Drive: 416,500 euros

The third Silvretta E-Car Rallye in Austria is a stress test for electric cars, hydrogen fuel cell cars and electric motorbikes. The 300-mile, three day course winds up and down the Alpine mountain roads around Montafon, Austria, that include grades of more than 15 degrees.

As in past years, Daimler will again have the most vehicles at the starting line, with a total of seven battery and fuel cell-powered electric cars. The event will take place at Montafon, Austria, from July 5–7 2012. All the Daimler vehicles will cope easily with the tougher conditions of this year’s rallye, including longer distances, large height differentials and even steeper gradients than before. Furthermore, the smart ebike is going to travel parts of the Silvretta rallye route, as well.

For the first time, the Daimler entrants will include two brand-new smart fortwo electric drive cars. This model has been commercially available since mid-June 2012, making Daimler the first German automaker to launch a series-produced all-electric car on the market. They will be competing alongside their tried and proven counterparts: two Mercedes-Benz A-Class E-CELL vehicles, two Mercedes-Benz B-Class F-CELL vehicles and the Mercedes-Benz SLS AMG E-CELL electric super-sports car, scheduled for market launch in 2013. It will be driven by Karl Wendlinger, a former Formula One driver and now an AMG brand ambassador.

Electric cars traversing the Montafon mountains

The three-day rallye through the mountainous landscape of the Montafon area is not a speed contest – instead, the victor will be the driver displaying the greatest degree of uniformity and skill. The overall distance of the course is more than 330 kilometres, around 30 kilometres longer than last year. The sections are also significantly more demanding than before. The task is to negotiate the various sections, including gradients of up to 15.2 percent and height differentials of as much as 4759 metres during a day, with incredible accuracy: the teams are expected to complete a series of trials in exactly the right time, to within a hundredth of a second, with penalties for faster or slower times. And because they are driving silent electric cars with zero local emissions, the competitors will enjoy the added benefits of clear mountain air free of emissions or noise pollution – surely the best possible way to experience the scenic mountain landscape in Austria’s Vorarlberg and Tyrol regions!

Mercedes-Benz and smart electric cars

The third Silvretta E-Car Rallye enables Daimler to showcase the world of future mobility, with its wide spectrum of electric cars powered by batteries or fuel cells, already operating reliably in everyday road transport conditions.

The participation of the new smart fortwo electric drive car in the Silvretta event will show that the new vehicle is now more than a superb inner-city car. Its enhanced power ratings provide more dynamic performance qualities and excellent acceleration, equally useful at traffic lights in Berlin as on a steep climb in the Montafon mountains. Its range of 145 kilometres, maximum power of 55 kW and top speed of 125 km/h make the new smart fortwo electric drive even more fun to drive than its predecessor. It should be noted that the previous model was already an impressive performer, with a range of 135 km, 30 kW output and a top speed of 100 km/h.

The competitors in the e-rallye will again include two Mercedes-Benz A-Class E-CELL cars. This model offers space, flexibility and comfort, all with zero local emissions. Its range of more than 200 kilometres makes it ideal for local emissions-free driving, both in the city and on the open road. It is powered with a quiet, locally emissions-free electric motor with an output of 70 kW (95 hp). The A-Class E-CELL is fully ready for series production, and is already available to selected customers.

Another vehicle is the Mercedes-Benz B-Class F-CELL. This car has already proved its readiness for series production and suitability for everyday use, for example in the F-CELL World Drive event in 2011. The fuel-cell powered vehicle runs on hydrogen, with a 100-kW electric motor offering dynamic performance qualities equivalent to those of a 136-hp, 2.0-litre petrol engine model. The B-Class F-CELL has a range of around 400 kilometres per tank of fuel.

Another highlight back at this year’s event is the Mercedes-Benz SLS AMG E-CELL. The performance of this outstanding concept model over the twists and turns of the Alpine rallye course will prove once and for all that thrilling and dynamic automotive performance can go hand in hand with electric propulsion. The fascinating gullwing design, now with a high-tech emissions-free powerplant developing a maximum output of 392 kW and a maximum torque of 880 newton metres, is the standout pioneer in the super sports car market segment. The man at the wheel of the SLS AMG E-CELL will be well up to the task: as a former Formula One driver and a native-born Austrian, Karl Wendlinger knows all about fast cars and the mountainous route traversed by the Silvretta E-Car Rallye.

Two-wheeled electric mobility with the smart ebike

Not all of the electric vehicles in the Montafon mountains this year will be on four wheels. Daimler will also have the new smart ebike on board, to travel part of the route of the Silvretta E-Car Rallye, up hill and down dale, in tandem with the cars. The new member of the smart family successfully puts the characteristic smart on two wheels: everyday functionality, distinctive smart design and high-tech excellence, as illustrated by the outstandingly powerful and efficient drive concept. The pedelec (pedal electrical cycle) combines the comfort of a motorised bicycle with the ease of handling of a bicycle. These bikes can be operated in EU countries without a driver’s licence or insurance sticker, since the electric motor provides support up to a speed of 25 km/h. The smart ebike is fitted with a 423-Wh lithium-ion battery, and has a continuous power rating of 250 W and a torque of 35 Nm.

With the electric drivetrain system of the SLS AMG E-CELL, Mercedes-AMG GmbH is providing yet another glimpse of its latest development project. The drivetrain has been in development since 2010 as a result of the cooperation between Mercedes-AMG and Mercedes AMG High Performance Powertrains in Brixworth. Four synchronous electric motors located near the wheels, providing a peak output of 392 kW and torque of 880 Nm, help to provide the SLS AMG E-CELL with its exciting driving dynamics. The carbon-fibre transmission tunnel, which also serves as the monocoque housing for the high-voltage battery modules, is structurally integrated into the aluminium body shell and firmly bonded to it. The lightweight fibre composite materials have their origins in the world of Formula 1, among other areas.

A small series-production run of the Mercedes-Benz SLS AMG E-CELL is expected to be launched onto the market in 2013. The powerful and locally emission-free super sports car with electric drive is yet another example of the innovative strength and development competence of the AMG performance brand.

The ground-breaking drive system of the technology vehicle boasts some outstanding features: powerful traction is provided by four synchronous electric motors with a combined peak output of 392 kW and a maximum torque of 880 Nm. The four compact electric motors each achieve a maximum rotational speed of 12,000 rpm and are positioned close to the wheels. As a result, compared with wheel-hub motors, the unsprung masses are substantially reduced. One transmission per axle transmits the power.

Acceleration from zero to 100 km/h in 4 seconds

When it comes to dynamics, the electrically-powered SLS makes a statement: the gullwing model accelerates from zero to 100 km/h in 4 seconds – which almost puts it on the same high level as the SLS AMG with 6.3-litre V8 engine developing 420 kW (571 hp), which can accelerate to 100 km/h in 3.8 seconds.

Further exciting touches are provided courtesy of the agile accelerator response and the straight-line performance: unlike a combustion engine, torque build-up in an electric motor is instantaneous – maximum torque is available virtually from a standstill. The spontaneous torque build-up and confident power delivery – which does not suffer from any interruption of tractive power – are combined with engine running characteristics which are totally free of vibration.

The key data at a glance:

All-wheel drive with torque vectoring enables completely new levels of freedom

Four wheels, four motors – the intelligent and permanent all-wheel drive of the electric SLS guarantees driving dynamics at the highest level, while at the same time providing the best possible active safety. Optimum traction is therefore ensured, whatever the weather conditions. According to the AMG developers, “torque vectoring” involves the individual control of the electric motors, something which enables completely new levels of freedom to be achieved. Torque vectoring is permanently active and allows for selective distribution of forces for each individual wheel. The intelligent distribution of drive torque greatly benefits driving dynamics, handling, driving safety and ride comfort. Each individual wheel can be electrically driven and electrically braked, depending on the driving conditions, thus helping to

• optimise the vehicle’s cornering properties
• reduce the tendency to oversteer/understeer
• increase the yaw damping of the basic vehicle
• reduce the steering effort and steering angle required
• increase traction
• and minimise ESP® intervention

Torque vectoring enables optimum use of the adhesion potential between the tyres and the road surface in all driving conditions, thereby extending the critical limits of the vehicle’s driving dynamics.

Advanced technology from Formula 1: high-voltage lithium-ion battery

The SLS AMG E-CELL incorporates a liquid-cooled high-voltage lithium-ion battery featuring a modular design with an energy content of 48 kWh. Its development has made use of advanced technology from the world of Formula 1: the battery is the first result of the co-operation between Mercedes-AMG GmbH in Affalterbach and Mercedes AMG High Performance Powertrains (formerly Mercedes-Benz High Performance Engines). Headquartered in Brixworth, England, the company has been working closely with AMG for a number of years. F1 engine experts have benefited from its extensive expertise with the KERS hybrid concept, which made its debut in the 2009 Formula 1 season. At the Hungarian Grand Prix in 2009, Lewis Hamilton achieved the first historic victory for a Formula 1 vehicle featuring KERS hybrid technology in the form of the Mercedes-Benz KER System.

The high-voltage battery consists of 12 modules each comprising 72 lithium-ion polymer cells. This optimised arrangement of a total of 864 cells has benefits not only in terms of best use of the installation space, but also in terms of performance. The maximum electric load potential of the high-voltage battery is 480 kW, which is an absolute best value in the automotive sector. Another technical feature of this considerable performance is the intelligent parallel circuit of the individual battery modules – this also helps to maximise the safety, reliability and service life of the battery. As in Formula 1, the 400-volt battery is charged by means of targeted recuperation during braking whilst the car is being driven.

High-performance control as well as effective cooling of all components

A high-performance electronic control system converts the direct current from the high-voltage battery into three-phase alternating current which is required for the synchronous motors and regulates the energy flow for all operating conditions. Two low-temperature cooling circuits ensure that the four electric motors and the power electronics are maintained at an even operating temperature. A separate low-temperature circuit is responsible for cooling the high-voltage lithium-ion battery. In low external temperatures, the battery is quickly brought up to operating temperature with the aid of an electric heating element. This helps to preserve the overall service life of the battery. In extremely high external temperatures, the cooling circuit for the battery can be additionally boosted with the aid of the air conditioning system.

“AMG Lightweight Performance” design strategy

The trailblazing body shell structure of the SLS AMG E-CELL is part of the ambitious “AMG Lightweight Performance” design strategy. The battery is located within a carbon-fibre monocoque which forms an integral part of the body shell and acts as the gullwing model’s “spine”. The fibre composite materials have their roots in the world of Formula 1, among other areas. The advantages of carbon-fibre were exploited by the AMG engineers in the design of the monocoque. These include their high strength, which makes it possible to create extremely rigid structures in terms of torsion and bending, excellent crash performance and low weight. CFRP components are up to 50 percent lighter than comparable steel ones, yet retain the same level of stability. Compared with aluminium, the weight saving is still around 30 percent, while the material is considerably thinner. The weight advantages achieved through the carbon-fibre battery monocoque are reflected in the agility of the SLS AMG E-CELL and, in conjunction with the highly innovative wheel-selective four-wheel drive system, ensure true driving enjoyment.

The carbon-fibre battery monocoque is, in addition, conceived as a “zero intrusion cell” in order to meet the very highest expectations in terms of crash safety. It protects the battery modules inside the vehicle from deformation or damage in the event of a crash.

The basis for CFRP construction is provided by fine carbon fibres, ten times thinner than a human hair. A length of this innovative fibre reaching from here to the moon would weigh a mere 25 grams. Between 1000 and 24,000 of these fibres are used to form individual strands. Machines then weave and sew them into fibre mats several layers thick, which can be moulded into three-dimensional shapes. When injected with liquid synthetic resin, this hardens to give the desired structure its final shape and stability.

Through their experience with the SLR, the AMG Black Series vehicles and in motorsport, Mercedes-Benz and AMG have accumulated more than 10 years of expertise in working with carbon-fibre materials. AMG currently makes the propshaft for the SLS AMG, for example, in carbon-fibre. On the SLS Roadster, the supporting structure for the draught-stop is made as standard as a carbon sandwich structure. This component, with extremely short cycle times in an industrially oriented manufacturing process, already demonstrates what will be possible in the future.

Optimum weight distribution and low centre of gravity

The purely electric drive system was factored into the equation as early as the concept phase when the gullwing model was being developed. It is ideally packaged for the integration of the high-performance, zero-emission technology: by way of example, the four electric motors and the two transmissions can be positioned as close to the four wheels as possible and very low down in the vehicle. The same applies to the modular high-voltage battery. Advantages of this solution include the vehicle’s low centre of gravity and balanced weight distribution – ideal conditions for optimum handling, which the electrically-powered gullwing model shares with its petrol-driven sister model.

New front axle design with pushrod damper struts

The additional front-wheel drive called for a newly designed front axle: unlike the series production vehicle with AMG V8 engine, which has a double wishbone axle, the SLS AMG E-CELL features an independent multi-link suspension with pushrod damper struts. This is because the vertically-arranged damper struts in the series SLS had to make way for the additional drive shafts. As is usual in a wide variety of racing vehicles, horizontal damper struts are now used, which are operated via separate push rods and transfer levers.

Thanks to this sophisticated front-axle design, which has already been tried and tested in the world of motorsport, the agility and driving dynamics of the SLS AMG E-CELL attain the same high levels as the V8 variant. Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

AMG ceramic composite brakes for perfect deceleration

The technology vehicle is slowed with the aid of AMG high-performance ceramic composite brakes, which boast extremely short stopping distances, a precise actuation point and outstanding fade resistance, even in extreme operating conditions. The over-sized discs – measuring 402 x 39 mm at the front and 360 x 32 mm at the rear – are made of carbon fibre-strengthened ceramic, feature an integral design all round and are connected to an aluminium bowl in a radially floating arrangement.

The ceramic brake discs are 40 percent lighter in weight than the conventional, grey cast iron brake discs. The reduction in unsprung masses not only improves handling dynamics and agility, but also ride comfort and tyre grip. The lower rotating masses at the front axle also ensure a more direct steering response – which is particularly noticeable when taking motorway bends at high speed. The ABS and ESP® systems have been adapted to match the special application spectrum of the permanent all-wheel drive.

The SLS AMG E-CELL body shell being shown by Mercedes-Benz AMG at the IAA 2011 is one trailblazing outcome of its ambitious “AMG Lightweight Performance” design strategy. Its key element is a transmission tunnel made out of lightweight carbon-fibre composite material (CFRP), which is structurally integrated into the aluminium body shell and firmly bonded with it. The high-strength and stiff CFRP component helps to reduce weight, while also serving as a monocoque housing for the battery modules.

The carbon-fiber battery monocoque in the SLS AMG E-CELL forms an integral part of the body shell and acts as the vehicle’s “spine”. The advantages of carbon composite materials were specifically exploited by the AMG engineers in its design. These include their high strength, which makes it possible to create extremely rigid structures in terms of torsion and bending, excellent crash performance and low weight. CFRP components are up to 50 percent lighter than comparable steel ones, yet retain the same level of stability. Compared with aluminium, the weight saving is still around 30 percent, while the material is considerably thinner. The advantages in terms of weight achieved through the carbon-fibre battery monocoque are reflected in the agility of the SLS AMG E-CELL and, in conjunction with the highly innovative wheel-selective four-wheel drive system, ensure true driving enjoyment.

The carbon-fiber battery monocoque is, in addition, conceived as a “zero intrusion cell” in order to meet the very highest expectations in terms of crash safety. It protects the battery modules inside the vehicle from deformation or damage in the event of a crash.

Tobias Moers, Member of the Board of Management of Mercedes-AMG GmbH, responsible for overall vehicle development: “AMG Lightweight Performance is the term we use at AMG to encompass all the different technologies involved in lightweight construction. The use of carbon makes vehicles not only lighter, but even more efficient and agile – in motorsports and on the streets. This is especially important for sports cars.”

The basis for CFRP construction is provided by fine carbon fibres, ten times thinner than a human hair. A length of this innovative fibre reaching from here to the moon would weigh a mere 25 grams. Between 1000 and 24,000 of these fibres are used to form individual strands. Machines then weave and sew them into fibre mats several layers thick, which can be moulded into three-dimensional shapes. When injected with liquid synthetic resin, this hardens to give the desired structure its final shape and stability.

Through their experience with the SLR, the vehicles in the AMG Black Series and in motorsport, Mercedes-Benz and AMG have accumulated more than 10 years of expertise in working with carbon-fibre materials. AMG currently makes the propshaft for the SLS AMG, for example, in carbon-fibre. On the SLS Roadster, the supporting structure for the draught-stop is made as standard as a carbon sandwich structure. This component, with extremely short cycle times in an industrially oriented manufacturing process, already demonstrates what will be possible in the future.

CFRP components also play an important role in Mercedes-Benz and AMG’s lightweight design strategy for the future. In conformity with the motto “the right material, in the right place, the proportion of high-strength steels, aluminium and fibre-reinforced plastics is set to increase significantly in the future. The body shell weight of all Mercedes-Benz vehicles should fall by ten percent compared with their predecessors.

Just how seriously Mercedes-Benz and its high-performance arm AMG are treating the issue of lightweight design as an important factor along the road to sustainable mobility, is demonstrated by the full-aluminium body shell of the SLS AMG. With it, the super sports model shows the way for future model ranges.

Daimler has today confirmed its plans to form a partnership with Robert Bosch GmbH to develop electric motors for a new generation of electric vehicles. If all goes well, production of the electric motors will begin production in early 2012. The motors will initially be used in Mercedes-Benz and smart electric cars starting in the later part of 2012.

Production of EV at BMW is not slated to begin until 2013, putting Mercedes far in front of the competition.

Specific vehicle details have yet to be released, but we expect the first vehicles to receive the electric motors will be the SLS AMG E-Cell and the A-Class E-Cell.

Press Release

Daimler AG and Robert Bosch GmbH plan to expand their long-standing partnership and cooperate in the development and production of electric motors for all-electric vehicles in Europe. The companies have signed a letter of intent and begun negotiations to establish a 50:50 joint venture that should be concluded in the first half of 2011.

Both companies aim, by bundling their competencies, to accelerate development advances in electric motors as well as to make accordant synergies accessible. According to their letter of intent, joint production should start in 2012. It is envisioned that the electric motors developed will be used in Mercedes-Benz and smart electric vehicles from 2012. Subsequent sales to other automakers are to be handled by Bosch. The joint activites will be located in the greater Stuttgart area and in Hildesheim.

The Bosch Group is a leading supplier of technology and services to the automotive sector. It has a high level of competence in developing and producing electric motors, which it is already manufacturing in series in Hildesheim.

The automotive manufacturer Daimler has built up 20 years of experience in the area of electric vehicles as well as their key components electric motor and battery, giving it a comprehensive understanding of how results can be best achieved in this field.

The new models presented by Mercedes-Benz at the first major European motor show of the automobile’s 125 anniversary year all have one thing in common – their sportiness. The C-Class Coupe, which is celebrating its world premiere, is just as remarkable as the new-generation C-Class sedan and station wagon for its driving fun and outstanding efficiency. In keeping with their sporty character, the new C-Class models were introduced by players from the women’s German national soccer team. A further highlight of this year’s “Geneva Salon” is the third iteration of the SLK, which redefines the roadster experience while consuming up to 25 percent less fuel than its predecessor. Making its debut on the eve of the show was the new top-of-the-range version of Mercedes’ bestselling model range – the C 63 AMG, which generates up to 358 kW (487 hp) and consumes around ten percent less fuel. The inventor of the automobile is also presenting the SLS AMG E-CELL, which makes its European motor show debut in Geneva.

The first “eye-catcher” at today’s Mercedes-Benz press conference was the Mercedes Simplex from 1902. The revolutionary design of the legendary sports car and its direct predecessor, the Mercedes 35 hp from 1901, defined the vehicle architecture that prevails throughout the auto industry to this day – a low center of gravity, long wheelbase and wide track are the basis for comfortable and sporty driving. It is in this tradition that the new Mercedes models make their debut in Geneva. “All our new models embody the cultivated sportiness that is anchored deep in our DNA”, said Dr. Dieter Zetsche, Chairman of the Board of Management of Daimler AG and Head of Mercedes-Benz Cars. “Every one of them delivers pure driving fun with exemplary efficiency – and none more so than the latest milestone in the 125-year history of the automobile, the SLS AMG E-CELL with battery-electric drive, which will arrive in our showrooms in 2013.”

The new C-Class Coupe – world premiere for third family member

Elegant design and an expressive character are what distinguish the new C‑Class Coupe, with which Mercedes-Benz is entering another new market segment in this, the 125th year of the company’s history. The youthful and sporty two-door, which celebrates its world premiere at the Geneva International Motor Show and makes its market debut in June, is the first classic coupe in the C-Class lineup. Dr. Joachim Schmidt, Member of Mercedes-Benz Cars Management responsible for Sales and Marketing said, “The new C‑Class Coupe is an individual and distinctive interpretation of our design philosophy.”

The newcomer boasts all of the same progressive technology as its extensively updated siblings. Here, too, the result is very clearly – pure driving fun matched with exemplary efficiency. It goes without saying that the elegant coupe is also equipped with a full range of technical highlights, including a host of assistance systems and new-generation telematics with internet access.

Market launch will see a choice of five modern direct-injection gasoline and diesel engines. The most fuel-efficient coupe version is the C 220 CDI BlueEFFICIENCY with manual six-speed transmission and ECO start/stop function as standard. The NEDC consumption of just 4.4 liters of diesel per 100 kilometers equates to 117 grams of CO2 per kilometer. The top engine version is the V6 gasoline engine in the C 350 BlueEFFICIENCY. It generates 225 kW (306 hp) and 370 Nm, yet consumes an average of only 6.8 liters/ 100 km. “With the expansion of the C-Class lineup, we are also consciously aiming at new customers,” said Dr. Schmidt. “The new model is youthful, stylish and dynamic. With it, we are offering an incredibly sporty entry into the world of Mercedes-Benz coupes.”

The new-generation C-Class – a bestseller in top shape

The new generation of the Mercedes-Benz C-Class has been extensively updated with more than 2,000 new parts and an innovative engine range. Following one of the most comprehensive mid-life facelifts in the history of the company, the bestselling vehicle in the current Mercedes-Benz product lineup has all the prerequisites to continue a unique success story – since its introduction three decades ago, sales of the C-Class and segment-founder the Mercedes-Benz 190 have topped 8.5 million units. Following model update, the new-generation sedan and station wagon have an even more dynamic and self-confident look. The interior has been extensively redesigned and is now presented in line with the Mercedes design philosophy of “Aesthetic Precision”. Premium materials and outstanding workmanship offer the perfect representation of the brand’s hallmark cultivated sportiness. A further innovation of the 2011 C-Class is the “COMAND Online” multimedia system with internet access.

Highly efficient direct-injection engines, the ECO start/stop function as standard and the 7G-TRONIC PLUS seven-speed automatic available for all engines make sure that dynamic driving fun comes together with the very best efficiency. It is with this high-tech package that the new-generation C-Class achieves consumption improvements compared with the preceding model of up to 31 percent. The equally outstanding safety also benefits from features such as ten new driver assistance systems carried over from the E and S-Class.

A further strength of the C-Class is its scope and variety. The already distinctive individualization program has been further expanded with a wider range of equipment options. And, with the new C-Class coupe, Mercedes-Benz is adding another member to the successful C-Class family.

The new SLK Roadster – the third chapter of a great success story

With the new SLK, the most successful sports car in its class is now entering its third iteration. The athletic two-seater with classic roadster proportions takes open-air driving fun to an all-new level. It unites light-footed athleticism with stylish comfort, distinctive sports car design with full everyday usability, top performance with exemplary ecology. The SLK also marks the world premiere of the panoramic vario-roof with MAGIC SKY CONTROL that can be switched light or dark at the touch of a button.

“With its countless technical innovations, the new SLK confirms its role as a trendsetter in the compact premium roadster segment that we founded with the first generation,” said Dr. Schmidt. Efficiency and spirit come together in the new four and six-cylinder engines with ECO start/stop function. They guarantee exceptional performance combined with up to 25 percent lower fuel consumption – a function, too, of the optimized 7G-TRONIC PLUS seven-speed automatic transmission, which is now available for all models. A unique range of safety equipment also underscores the leading position taken in its segment by the SLK.

Mercedes-Benz F-CELL World Drive – around the world with hydrogen

The “Mercedes-Benz F-CELL World Drive” that is currently underway with three fuel cell-driven B-Class F-CELL vehicles demonstrates that local zero-emissions electromobility is already ripe for series production at Mercedes-Benz. At the start of the Geneva Motor Show, the latest status was as follows – after around 3,600 kilometers through Europe, the World Drive participants are now on the road in the USA. The second major stage runs from Florida on the Atlantic coast right through the United States to California, before heading north along the Pacific coast all the way to Vancouver in Canada. The tour then takes to the air in Seattle, heading first for Australia then China. With the world tour that began on January 29, Mercedes-Benz is seeking to demonstrate the enormous potential of fuel cell technology and, in particular, to lobby for the establishment of a hydrogen fuel station network. “Our fuel cell electric cars are ready to roll. All that is missing is a hydrogen infrastructure,” said Zetsche.

If you haven’t gotten enough of the recently announced Mercedes SLS AMG E-Cell, we’ve got a more comprehensive photo gallery of the electric model highlighting the neon Gullwing in all its unadulterated glory.  We’re not going to go over the SLS E-Cell’s technical specifications again, as you can view a complete overview of the model in our prior article on the subject; but for those of you wishing to see more of the SLS AMG E-Cell, there should be plenty to keep you occupied. You can view the complete Mercedes SLS AMG E-Cell photo collection in the gallery below.

Mercedes-AMG is accepting the challenges of motoring of the future: the SLS AMG E-CELL is evidence of the state-of-the-art development of an exciting super sports car featuring a zero-emission high-tech drive. Boasting a power output of 392 kW and 880 Nm of torque, the technology vehicle from AMG is able to offer exceptional performance. The gullwing with electric drive is part of the company strategy entitled “AMG Performance 2015” which aims to continually reduce fuel consumption and emissions.

With the SLS AMG E-CELL, Mercedes-AMG is providing a glimpse of its latest development project – a powerful and locally emission-free super sports car. Finished in fluorescent “AMG lumilectric magno” paint, the gullwing offers the prospect of a possible small series production run and at the same time reflects the innovative strength and development competence of the AMG performance brand.

“We take social responsibility very seriously and with the SLS AMG E-CELL we are demonstrating a further milestone in our “AMG Performance 2015″ strategy. It is our goal to continually reduce the fuel consumption and emissions of new models in the coming years, while at the same time enhancing the core brand value of performance”, explains Ola Källenius, chairman of the board (from 1 July 2010) of Mercedes-AMG GmbH. With the SLS AMG E-CELL, the performance brand of Mercedes-Benz is launching a totally innovative drive solution for super sports cars and as such is among the pioneers in this market segment.

The ground-breaking drive system of the technology vehicle boasts some outstanding features: powerful traction is provided by four synchronous electric motors with a combined peak output of 392 kW and a maximum torque of 880 Nm. The four compact electric motors each achieve a maximum rpm of 12,000/rpm and are positioned near to the wheels. As a result, compared with wheel-hub motors the unsprung masses are substantially reduced. One transmission per axle transmits the power.

Acceleration from zero to 100 km/h in 4 seconds

When it comes to dynamics, the electrically-powered SLS AMG makes a statement: the gullwing model accelerates from zero to 100 km/h in 4 seconds – which almost puts it on the same high level as the SLS AMG with 6.3-litre V8 engine developing 420 kW (571 hp), which can accelerate to 100 km/h in 3.8 seconds.

Further exciting touches are provided courtesy of the agile accelerator response and the straight-line performance: unlike the combustion engine, torque build-up with an electric motor is instantaneous – maximum torque is available virtually from a standstill. The spontaneous torque build-up and confident power delivery – which does not suffer from any interruption of tractive power – are combined with engine running characteristics which are totally free of vibration. Four motors, four wheels: the intelligent and permanent all-wheel drive of the electric SLS guarantees driving dynamics at the highest level, while at the same time providing the best possible active safety. Perfect traction is therefore ensured for all four driven wheels, whatever the weather conditions.

This very special gullwing is therefore able to “electrify” the driver with a completely unique, effortlessly superior and emotional super sports car driving sensation – and this is just at the prototype stage. In brief: the SLS AMG E-CELL is a true AMG too.

High-voltage lithium-ion battery provides 400 v and 40 Ah

The SLS AMG E-CELL drive incorporates a liquid-cooled high-voltage lithium-ion battery featuring a modular design with an energy content of 48 kWh and a

capacity of 40 Ah. The maximum electric load potential of the battery, which consists of 324 lithium-ion polymer cells, is 480 kW, which is an absolute best value in the automotive sector. Another technical feature of this considerable performance is the intelligent parallel circuit of the individual battery modules – this also helps to maximise the safety, reliability and service life of the battery. The 400-volt battery is charged by means of targeted recuperation during braking whilst the car is being driven.

Key data at a glance:

• Max. output – 392 kW
• Torque – 880 Nm
• 0 – 100 km/h – 4.0 s
• Rated capacity – 40 Ah (at 400 V)
• Energy content – 3 x 16 kWh = 48 kWh

High-performance electronic control as well as effective cooling of all components

A high-performance electronic control system converts the direct current from the high-voltage battery into three-phase alternating current which is required for the synchronous motors and regulates the energy flow for all operating conditions. Two low-temperature cooling circuits ensure that the four electric motors and the power electronics are maintained at an even operating temperature.

A separate low-temperature circuit is responsible for cooling the high-voltage lithium-ion battery. In low external temperatures, the battery is quickly brought up to operating temperature with the aid of an electric heating element. This helps to preserve the overall service life of the battery. In extremely high external temperatures, the cooling circuit for the battery can be additionally boosted with the aid of the air conditioning system.

Optimum weight distribution and low centre of gravity

The purely electric drive system was factored into the equation as early as the concept phase when the gullwing model was being developed. It is ideally packaged for the integration of the high-performance, zero-emission technology: by way of example, the four electric motors and the two transmissions can be positioned as close to the four wheels as possible and very low down in the vehicle. The same applies to the modular high-current battery, whose modules are located in front of the firewall, in the centre tunnel and behind the seats. Advantages of this solution include the vehicle’s low centre of gravity and balanced weight distribution – ideal conditions for optimum handling, which the electrically-powered SLS AMG shares with its petrol-driven sister model.

The installation of the drive components required no changes whatsoever to the gullwing model’s weight-optimised aluminium spaceframe. And there were just as few constraints when it came to maintaining the excellent level of passive safety and high degree of long-distance comfort that are hallmarks of Mercedes cars.

New front axle design with pushrod damper struts

The additional front-wheel drive called for a newly designed front axle: unlike the series production vehicle with AMG V8 engine, which has a double wishbone axle, the SLS AMG E-CELL features an independent multilink suspension with pushrod damper struts. This is because the vertically-arranged damper struts in the series SLS had to make way for the additional drive shafts. As is usual in a wide variety of racing vehicles, horizontal damper struts are now used, which are operated via separate push rods and transfer levers.

Thanks to this sophisticated front-axle design, which has already been tried and tested in the world of motor sport, the agility and driving dynamics of the electrically-powered SLS AMG attain the same high levels as the V8 variant. Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.

AMG ceramic composite brakes for perfect deceleration

The technology vehicle is slowed with the aid of AMG ceramic composite brakes, available as an optional extra for the series production model, which boast extremely short stopping distances, a precise actuation point and outstanding fade

resistance, even in extreme operating conditions. The over-sized discs – measuring 402 x 39 mm at the front and 360 x 32 mm at the rear – are made of carbon fibre-strengthened ceramic, feature an integral design all round and are connected to an aluminium bowl in a radially floating arrangement.

The ceramic brake discs are 40 percent lighter in weight than the conventional, grey cast iron brake discs. The reduction in unsprung masses not only improves handling dynamics and agility, but also ride comfort and tyre grip. The lower rotating masses at the front axle also ensure a more direct steering response – which is particularly noticeable when taking motorway bends at high speed. The ABS and ESP® systems have been adapted to match the special application spectrum of the permanent all-wheel drive.

Full-LED headlamps and automatically extending front splitter

The purist, exciting design of the technology vehicle boasts a number of minor yet extremely effective modifications. At the front, the dynamically shaped full-LED headlamps with integrated daytime driving lights immediately catch the eye: they help to optimise the vehicle’s energy efficiency, since they require less power compared with regular bi-xenon light systems. The wider radiator grille also has a new look, and now comes with transverse slats instead of a diamond-pattern grille. The air outlet openings on the bonnet and the vehicle sides have also been modified for enhanced aerodynamics. All trim and detachable parts, which are finished in chrome or silver shadow on the standard SLS AMG, are now finished in matt black.

The front apron has not only been brought further forward, but also helps to guarantee an optimised airflow in the area of the underbody. This improves air resistance while reducing downforce. An extendable front splitter enhances this effect: in parallel with the automatic rear spoiler, it extends downwards by seven centimetres at speeds above 120 km/h and helps to further accelerate the air which travels beneath the car. When it reaches the area of the rear axle, the air enters the rear diffusor which, due to the lack of an exhaust system, features a steeper angle, thus increasing downforce at the rear axle and in turn further enhancing the aerodynamic balance. The vehicle’s AMG 10-spoke light-alloy wheels featuring a new, smooth-surfaced design are fitted with 265/35 R 19 (front) and 295/30 R 20 (rear) tyres.

Interior with new display instruments for electric drive

The transformation from petrol to electric super sports car also called for some specific changes to the interior. As a result, the AMG instrument cluster and centre console in particular both feature a new design. The new AMG instrument cluster provides information on speed, charge status of the battery and the estimated range. The newly designed centre console now houses a 25 cm touchscreen, which driver and passenger can use to conveniently operate all of the audio, climate and navigation functions, and also obtain information on the flow of power from the four electric motors.

The AMG Drive Unit, which is angled towards the driver, houses buttons for starting the motor, and the ESP® functions, the AMG memory function and the extendable front splitter and rear spoiler. Using three new buttons, the driver can switch simply between P, R and D. The park setting is also enabled automatically by switching the electric motors off.

The interior appointments are dominated by high-quality nappa leather in a black/white colour combination – it has been used not only on the sports seats, the performance leather/alcantara steering wheel and the door linings, but also on the broad centre tunnel which runs towards the back of the vehicle between the seats.

Last week we brought you the first look at the all new Mercedes-Benz SLS AMG E-Cell and now Mercedes has released a new video of the electric beast on the Atlanterhavsveien (also known as the Atlantic Road).  The video is nearly ten minutes long and could be one of the quietest supercar videos ever.

Despite being battery powered, the Mercedes-Benz SLS AMG E-Cell only just fails to match the performance of its sibling that is fitted with a 6.3-litre V8 engine.  With the single-speed transmission, the SLS AMG E-Cell does not go through gear changes and acceleration surges which will make the driver feel as if this is one of the fastest cars on the road.

In case you missed our previous post, the E-Cell features a lithium-ion polymer battery pack and electric motors which produce 392 kW (526 bhp / 533 PS) and 880 Nm (649 lb-ft) of torque. That is enough to propel the SLS AMG E-Cell from 0-62 mph in 4.0 seconds, compared to 3.8 seconds in the standard SLS.

Unique to the SLS AMG E-Cell is the new extended front apron, an extendable front splitter, a wider grille, LED headlights, and 19″ front and 20″ rear wheels. Inside is a radically redesigned center console that boasts a ten-inch touch screen infotainment system, capable of operating audio, climate, and navigation functions while also monitoring the flow of power from the four electric motors.  If all of this is not enough to get you excited about the new Mercedes E-Cell, you also have the “AMG lumilectric magno paintwork”.

According to Dr Dieter Zetsche, Chairman of Daimler AG and head of Mercedes-Benz Cars, the SLS AMG is “set to become one of the most coveted sports cars of our time”.