Mercedes - Benz E63 AMG 2011 The hand-built, DOHC, 6.2-liter V-8 from the previous edition returns boasting 11 more horsepower (now 518 hp at 6800 rpm) yet also a 12-percent increase in fuel efficiency. All that naturally aspirated horsepressure is a wonderful thing on its own, but for 2010 it flows through Mercedes' Speedshift MCT 7-speed automatic. Dispensing with a conventional torque converter in favor of a "wet start-up clutch," the MCT can crack off shifts in just 100 milliseconds (in manual mode). Four shift modes are available, with Sport Plus perhaps the most impressive. AMG developed its own V8 engine (dubbed M156 in development) for the DTM series. This naturally aspirated V8 will also be used to replace most of the "55" models. The published output according to Mercedes varies from 457 PS (336 kW; 451 hp) on the C63AMG, to 525 PS (386 kW; 518 hp) on the C/CLK/R/ML/GL/S/SL/CL/E 63 AMG. en.wikipedia.org www.motortrend.com
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