The fine gentlemen over at World Car Fans have managed to capture not one but two new Mercedes models testing recently:  a slightly-revised SLK-Class and a new C-Class Sports Coupe.

For the SLK, masked areas include the both the front and rear fascia along with the head lights and tail lights; all of which still appear similar to the current SLK.  As for the C-Class Sports Coupe, it appears exactly as you'd expect it to - styling updated to reflect the recently-introduced 2008 C-Class paired with the same form held by the former C-Class sports coupe. 

To learn more, head over to either the SLK spy photo collection or the C-Class Sports Coupe spy photo collection to view the corresponding galleries in their entirety.