E55 AMG (2003–2006)
The E55 AMG is powered by the M113 ML55 engine, a 5.4 L V8 with a Lysholm type supercharger manufactured by IHI. The E55's engine was tuned to 476 PS (350 kW; 469 hp) and 700 N·m (520 lb·ft), the low end of the supercharged 55 range due to its longer exhaust system, compared to the SL55 AMG's engine at the high end which made 517 PS (380 kW; 510 hp) and 720 N·m (530 lb·ft). Despite this, Car and Driver reported in their testing that the E55 AMG was faster than the SL55 AMG.The E55 AMG was the fastest four door car in Mercedes-Benz's lineup at the time, being quicker than the C32 AMG and S55 AMG, and it posts faster acceleration than the 2003 Brabus E V12 biturbo (verified by the Guinness Book of Records as the fastest saloon car in the world at the time) as well.
The supercharged 5.4 L V8 engine was mated to the Speedshift 5-speed automatic transmission, which has a torque capacity of 796 lb·ft (1,079 N·m), as the newer 7G-Tronic introduced in 2003 is limited to 542 lb·ft (735 N·m), not enough to handle the torque from the supercharged V8.
(info wikipedia)