2011 Mercedes-Benz CL63 and CL65 AMG debuts

Mercedes-Benz has released details for the 2011 CL63 AMG and CL65 AMG models. One gets a new supercharged motor while the other gets an upgraded one.

Increased performance and torque, reduced fuel consumption and exhaust emissions – these qualities are perfectly united in the new AMG 5.5-liter biturbo engine. Mercedes-AMG is confronting the challenges of the future, and demonstrating that dynamic performance can be perfectly combined with fuel economy. The result: a maximum output (with the optional AMG Performance Package) of up to 563 hp and 664 lb-ft of torque.

The new AMG 5.5L biturbo engine combines performance, innovation and efficiency to a previously unknown extent. This is made possible by a unique combination of innovative high-tech systems such as direct gasoline injection, twin turbochargers, air/water intercooling and the Controlled Efficiency stop/start function. The 2011 AMG CL models will be in U.S. showrooms this November.

Mercedes-AMG is systematically following the trend towards increasing efficiency: with a displacement of 5461 cc it is precisely 747 cc below the 6208 cc of the naturally aspirated AMG 6.3L V8 engine. Nevertheless, it develops more output and torque. The 2011 CL63 AMG develops a peak output of 536 hp and maximum torque of 590 lb-ft. In conjunction with the AMG Performance Package these figures increase to 563 hp and 664 lb-ft. The torque curve in particular shows that no other engine in this power class is able to match the figures delivered by the new AMG biturbo motor.

Despite an increase in horsepower and torque as compared to the naturally aspirated V8, AMG engineers have been able to reduce fuel consumption and CO2 emissions considerably. With an estimated fuel savings of 27%, engine specialists consider this to be nothing less than a quantum leap. CO2 emissions have likewise been significantly reduced by approximately 30%.

These improvements in efficiency and environmental protection have no negative effects on the car’s performance. On the contrary, as the new AMG 5.5L V8 biturbo fully lives-up to AMG’s brand commitment to “performance”: the CL63 AMG accelerates from zero to 60mph in 4.4 seconds, and has a top speed of 155 mph (electronically limited). With the AMG Performance package, the highperformance Coupé reaches the 60 mph mark in 4.3 seconds and reaches a top speed of 186 mph (electronically limited).

Both cars will hit U.S. showrooms by November.