The Mercedes-Benz CLS63 AMG S 4MATIC was the all-wheel drive, high performance variant offered for the C218 CLS-Class. Introduced for the 2014 model year, the CLS 63 AMG S 4MATIC was fitted with Mercedes-AMG's M157 DE55 engine. This high performance powerplant was a twin turbocharged 5.5L V8 that had an output of 577hp and 590 lb ft of torque. Drive was sent to all four-wheels via a 7 speed automatic transmission. Production of the C218 Mercedes-Benz CLS63 AMG S 4MATIC ended in 2018.