Mercedes will present the S63 AMG, CL63 AMG and Maybach the 62 S at Los Angeles Auto Show, open to the public December 1 – 10, 2006. The S63 AMG sedan and the CL63 AMG coupe are both powered by the first engine developed entirely by AMG — a 6.3-liter normally aspirated V8 that produces 518 horsepower and 465 lb.-ft. of torque.
The new 6.3 liter engine is one of the most powerful naturally aspirated production V8s ever. It is built almost completely from a high-strength silicon-aluminum alloy and features four valves per cylinder, variable valve timing, bucket followers (rather than rocker arms) and a variable intake manifold. Designed entirely by AMG, the engine shares no parts with Mercedes-Benz other V8 engines. 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.
The 62 S is powered by a higher-performance version of the Maybach twin-turbo, intercooled V12 engine. Designed and hand-built by Mercedes-AMG, the 62 S powerplant displaces six liters, a half-liter more than the standard engine. With higher turbo boost pressure and other modifications, the 62 S engine produces an impressive 604 horsepower and a massive 738 pound-feet of torque from as low as 2,000 rpm.