Brabus CLS V12 S

Known as the "Rocket", the CLS V12 S is powered by a 730
HP 6.3 litre Twin-Turbo V12 engine. At the heart of this new
high-performance automobile lies the V12 twin-turbo engine from the SL 600.
Brabus fits the engine with a special crankshaft, increases the cylinder
bore and installs forged pistons, resulting in a displacement increase to
380 cu in. Further modifications include the optimization of the mixture
flow in the intake and outlet manifolds of both cylinder heads as well as
the installation of sport camshafts.
In addition the Brabus powerplant engineers equip the engine with
custom-developed larger turbochargers, more efficient intercoolers and a
stainless-steel high-performance exhaust system with low back pressure metal
catalysts and four tailpipes. Newly programmed engine electronics coordinate
all new components perfectly and contribute not only to maximum power yield
but also to meeting all current legal emission limits.
It features a 0-60MPH of under 4 seconds and runs 0-186MPH in 29.5 seconds. Top speed is an impressive 220 MPH electronically limited meaning it can probably go a good amount faster.