New Mercedes CL63 AMG gets twin-turbo V8

Mercedes has officially revealed the new CL63 AMG – complete with an all-new 536bhp V8 engine.

The twin-turbo 5.5-litre lump replaces the naturally-aspirated 518bhp 6.2-litre V8 found in the previous model, and is now mated to a new seven-speed multi-clutch transmission.

Despite weighing two tonnes, the improved powertrain pushes the CL63 AMG to 62mph in 4.5secs and won't stop accelerating until it hits the limiter at 155mph.