Behind the Wheel | 2012 Mercedes-Benz Cls550 and Audi A7: Beauty Contestants With Cur
 

Two new sedans are going head to pretty head in a battle for luxury buyers: the Audi A7, with a supercharged V-6, and a redesigned Mercedes CLS550, powered by a twin-turbo V-8.

http://ads.pheedo.com/img.phdo?p=1

More...