In terms of styling, apart from the general revisions that were made to the facelifted 2010 S-Class, AMG adds new front bumper that incorporates a pair of LED daytime running lights, the restyled rear apron and the new, more pronounced arrow-shaped radiator grille featuring a diffuser, which in the case of the S63 AMG and S65 AMG, also feature twin chrome-plated loud exhausts.
As for interior, AMG raved in new sporty AMG seats, new infotainment systems, including COMAND APSwith new SPLITVIEW display, which shows different images for driver and front passenger simultaneously.
Of course, best bits in AMG is power. The S63 AMG and S65 AMG don't miss that at all. Both engines improved fuel economy and decreased CO2 emissions by around 3% retuning the car's engine management system. Nevertheless, the engine management system has increased power as well. The S63 AMG comes with a 6.3L V8 engine developing 525 hp and 465 lb-ft of torque, and is capable of reaching 60 mph from standstill in 4.6 seconds. While the S65 AMG that features a 6.0L twin-turbocharged V12 engine producing 612 hp and an astonishing 737 lb/ft, accelerates from 0 to 100km/h in 4.4 sec.
Considering that the S63 AMG and S65 AMG got new heavy Torque Vectoring Brake system that briefly applies the brakes on the vehicle's inner rear wheel during cornering, and Active Body Control (ABC) AMG sport suspension, they're pretty rapid machines weighing over two tonnes.
Both top-of-the-line AMG models will have their market launches in June 2009, with the S63 AMG being available in both short or long-wheelbase versions and the S65 AMG exclusively as a long-wheelbase version.
Source : [Mercedes-Benz]