Along with the new E 63 AMG, the latest model upgrade also benefits the CLS 63 AMG in its Coupe and Shooting Brake variants. The S-Model variant of the CLS 63 AMG not only boasts the performance-oriented AMG 4MATIC all-wheel drive but also comes with the AMG 5.5-litre V8 biturbo engine generating a maximum output of 430 kW (585 hp) and up to 800 Nm of torque.
 
The AMG 5.5-litre V8 biturbo engine continues to be efficienct: the combination of high performance and low fuel consumption remains unrivalled by any other competitor in the segment worldwide. The rear-wheel-drive variant rated at 410 kW (557 hp) and generating 720 Nm of torque is optionally available with the performance-oriented AMG 4MATIC all-wheel drive.
 
Acceleration from a standing start to 100 km/h in 3.6 seconds clearly places the CLS 63 AMG S-Model in pole position in the competitive line-up.
 
Despite added power and enhanced performance, all models offer high efficiency, low fuel consumption and low exhaust emissions. The AMG 5.5-litre V8 biturbo engine remains the most efficient series production V8 engine around.
 
The CLS 63 AMG rated at 410 kW (557 hp) with rear-wheel drive runs on 9.9 litres of fuel per 100 kilometres. The S-Model rated at 430 kW (585 hp) with all-wheel drive display only marginally higher fuel consumption, at 10.4 to 10.6 litres per 100 km (243 grams to 248 grams of CO2).
 
Ola Kallenius, Chairman of Mercedes-AMG, notes: "With its superlative power and torque ratings and the new performance-oriented AMG 4MATIC all-wheel drive, the CLS 63 AMG is without parallel in its Coupé and Shooting Brake variants. Our AMG 5.5-litre V8 engine remains the most efficient series production V8 engine in the world. The new, customised model variants provide greater scope than ever for individual solutions." 

Source: Mercedes