The CL500 Coupe on which it's based is no slouch to begin with. A 5.0-liter/302-horsepower/339 lb-ft V-8 moves the two-ton pillarless hardtop with ease. The naturally aspirated '02 CL55 engine delivered a 50-horsepower bonus over that. But the '03 AMG version kicks things up almost 200 notches. The addition of an intercooled screw-type supercharger and a slightly longer stroke results in 5.5 liters, 493 horsepower, and 516 lb-ft of torque. Compare those numbers to your ultimate American or German production sports car. This is serious pavement-buckling, addictive-sound-like-you've-never-heard-before kind of performance-all from a bank-vault-solid premium luxury coupe. Mercy. All this brawn is reined in by sophisticated technology. The handbuilt eight features a Bosch engine-management system that monitors engine load and speed and calculates when to activate an electromagnetic clutch for the supercharger's drive belt. Under light loads, the engine operates as a naturally aspirated unit. Under acceleration, and full-time above 2700 rpm, the supercharger seamlessly engages to deliver a maximum 11.6 psi of boost. More on : Spied: 2014 Mercedes-Benz C-Class and 2015 S-Class Coupe A stainless-steel, 2.75-inch four-cat dual-exhaust system efficiently scavenges all that air and lends the car its signature voice. Behind this potent mill is the Mercedes electronically controlled five-speed automatic, upgraded to AMG status. The SpeedShift programming delivers 35-percent-quicker shifts, with gear changes manually controllable from two steering-wheel-mounted buttons. Mercedes' ABC active suspension and ESP stability-control systems also are programmed with a more spirited AMG calibration. Bigger 18-inch Z-rated tires and larger, cross-drilled brake discs with eight-piston front calipers (shared with the V-12 CL600) complete the ground-hugging hardware. Mercedes has enjoyed record sales levels in the past few years. So how does the status-conscious driver make his own new Mercedes stand out from the growing crowd? Is cost no object? Driving one of only 500 U.S. '03 CL55s will not only proclaim your penchant for performance, it'll also generate your very own (automotive) celebrity sightings. 1 Owner Clean car fax car is like brand new. New tires non smoker everything works Call Steve