The Mercedes-Benz C63 AMG S was a high performance variant of the W205 C-Clas Sedans that debuted for the 2015 model year. The C63 S has been built in sedan, coupe, convertible, and estate (station wagon) body styles. These cars were fitted with Mercedes' M177 engine, which is a twin turbo V8 powerplant that generates 503hp in 'S' specification. This power is sent to the rear wheels via a 9 speed automatic transmission.