Mercedes' roadster has glass roof that changes color
The 2012 SLK will goes on sale this summer as the SLK350 with a redesigned 3.5-liter V-6 engine with 302 hp. It will be joined later in the 2012 model year by the four-cylinder, 1.8-liter SLK250, which has 201 hp. (MERCEDES BENZ)
