Mercedes-Benz R231

R231 is a chassis code for the sixth generation of the Mercedes-Benz SL-Class roadster, replacing the R230. The car was released in March 2012 and uses Mercedes-Benz's new 4.7 litre twin turbo V8 engine with a power output of 435 PS. AMG version of the roadster will follow. The new SL is 140 kg (309 lb) lighter than the previous, being made almost entirely out of aluminium. For the first time, the R231 SL-Class was not available with a non-AMG V12 engined SL 600 model.