The CLS-Class is an elegant four door coupe, a trend-setting, lowered and sculpted sedan built for drivers whose wants outweigh their needs. Three versions are available: CLS 400 4Matic (twin-turbo 3-litre V6 / 329 horsepower), CLS 550 4Matic (twin-turbo 4.7-litre V8 / 402 horsepower), both AWD, and the rear-wheel-drive CLS 63 AMG S (twin-turbo 5.5-litre V8 / 577 horsepower). While the CLS 550 debuts a new 9-speed automatic for 2016, other models keep their 7-speed transmissions.