The term “four-door coupe” gets bandied about a lot these days, and the world has the Mercedes-Benz CLS to thank for “inventing” it in 2004. Under its seductive body, the CLS is built on the E-Class chassis and equipped with its engines too. From the ?sic” 4.6L V8 to the 577-hp V8 AMG, all versions of the CLS have 4MATIC all-wheel drive. On the road, this sedan demonstrates impressive stability and powerful brakes.