Brabus introduced performance kits for the new Mercedes-Benz V8 biturbo engines of 
the latest S550 and CL550 as well as the S63 AMG and CL63 AMG 
models. Depending on the model and the level of tuning, the kits boost power 
output to up to 620 hp and peak torque to 737 lb-ft (1,000 Nm). In addition, 
there are aerodynamic-enhancement components made from exposed carbon fiber, 
custom-tailored tire/wheel combinations with diameters of up to 21 inches, and 
exclusive interior options.
In addition to the auxiliary control unit for the 
engine electronics, the two Brabus power upgrades for the S63 AMG and CL63 AMG models 
also include a water-to-air intercooler powered by an electric auxiliary pump. 
The lower charge air temperature in both cases benefits power yield and 
longevity even under extreme operating conditions. 
For the S63 AMG and CL63 
AMG models not equipped with performance package Brabus offers the Brabus B63 - 
584 PowerXtra CGI performance kit for 5,900 EUR ($8,500). It bumps power output 
by 40 hp.
For all 63-series models equipped with 
performance package Brabus offers the Brabus B63 - 620 PowerXtra CGI version, 
which also costs $8,500. As the name indicates, after the conversion the biturbo 
engine produces 620 hp at just 5,500 rpm. 
Simultaneously peak torque grows from 663 to 737 lb-ft (900 to 1,000 Nm), 
available between 2,250 and 3,750 rpm.
In S63 AMG and CL63 AMG models with 
Brabus B63 - 620 PowerXtra CGI tuning sprint time from 0 to 60 mph is 
shortened to 4.2 seconds. In combination with the integrated Brabus V/max Unit, 
top speed increases to up to 200 mph (320 km/h).
The ideal complement to 
the tuning of the 5.5-liter engine is the Brabus sport exhaust system with 
exhaust flap control. At the push of a button on the steering wheel the driver 
can choose whether to enjoy the V8 sound in the quiet and unobtrusive 'Coming 
Home' or in the markedly throaty 'Sport' mode. The fully stainless-steel exhaust 
system features two ceramic-coated tailpipes with striking design that add some 
visual thrills as well.
For even better 
directional stability at these extremely high speeds, the Brabus designers went 
into the wind tunnel to develop appealing and functional aerodynamic-enhancement 
components for the body kit of the S63 AMG. The components are manufactured 
from exposed carbon fiber.
The Brabus front spoiler gives the production 
front apron a visual upgrade and reduces lift on the front axle. The more 
striking front is rounded out with carbon-fiber moldings for the gills in the 
sides of the front bumper. Brabus aluminum sport fenders lend the car a 
decidedly dynamic appearance.
The Brabus carbon-fiber diffuser with 
integrated reflector and the carbon-fiber rear spoiler reduce lift on the rear 
axle.
Naturally Brabus also offers custom-tailored Brabus Monoblock alloy 
wheels with diameters ranging from 19 to 21 inches for all Mercedes S- and 
CL-Class models.
Upon customer request Brabus also refines the 
interiors of S-Class sedans and CL coupes to suit the owners' personal tastes.