New V8 Power for the E-Class
While the E350 continues to use the latest four-valve-per-cylinder V6 engine that produces 268 horsepower and 258 lb.-ft. of torque, the E500 has been replaced by the E550 model, now powered by a new-generation 32-valve 5.5-liter V8 delivering 382 horsepower and 391 lb.-ft. of torque.

Rounding out the E-Class line, the high-performance E63 AMG replaces the previous E55 AMG model.  Marking the debut of the first engine developed entirely by AMG, the E63 AMG is powered by a 6.3-liter naturally aspirated V8 that produces 507 horsepower and 465 lb.-ft. of torque.  One of the most powerful naturally aspirated production V8s ever, the new engine boasts a wealth of exciting features derived from AMG’s highly successful racing efforts.


 A first for a production engine, the cylinder bores feature a twin-wire-arc-sprayed (TWAS) coating, a new process that results in impressively low friction and running surfaces that are twice as hard as conventional cast-iron cylinders.  Built almost completely from a high-strength silicon-aluminum alloy, the new 6.3-liter features four valves per cylinder, variable valve timing, bucket tappets (rather than rocker arms) and a variable intake manifold.  The engine shares no parts with other Mercedes-Benz V8 engines.