E63 AMG
The performance version of the E-Class, the E63 AMG is the first sedan built entirely by AMG. With a 518 hp (386 kW) engine, the E63 can achieve a top speed of around 200 mph (320 km/h) (electronic limiter off), and can accelerate from 0 to 60 mph (97 km/h) in 4.3 seconds.
The styling has been altered for both aesthetic and practical purposes: AMG side skirts and rear apron give the E63 more aggressive styling, and the larger air apertures on the front of the car allow for more air intake to the naturally aspirated 6.2 litre V8. Another styling change on the E63 is the wider, flared front wheel arches which accommodate the AMG front axle with a 2.2-inch-wider (56 mm) track.
For 2012, Mercedes-Benz started offering a bi-turbo V8 version. It has a W157, 5.5L twin-turbo V8, that is rated at 518 hp (386 kW), which is mated to a 7-speed AMG Speedshift MCT transmission
Portland Speed Industries, a performance shop in Hillsboro, OR, have tested a 2012 E63 AMG biturbo on their Dynojet dynamometer and it produced 479 whp and 561 lb·ft (761 N·m) of torque.
Read more about this topic: Mercedes-Benz E-Class