The 2007 Mercedes-Benz ML63 AMG gets a full-body massage that transforms it from an upscale suburban SUV into a pavement-mauling sport-utility. A hand-built, 6.3-liter V8 whips up 503 horsepower and 465 lb.-ft. of torque, good for getting the muscular ML63 AMG from zero to 60 mph in just five seconds. Power flows to all four wheels through a specially-calibrated seven-speed automatic transmission that can be manually shifted using buttons on the steering wheel. The driver can even choose between three shift programs: sport (S), comfort (C), or manual (M). The 2007 Mercedes-Benz ML63’s modified 4Matic AWD system splits power 40/60 front-to-rear for a sporty feel from behind the wheel. Other hardware upgrades include stiffer shocks for the standard Airmatic suspension system, a sport-tuned version of the adaptive damping system (ADS), bigger brakes with vented and perforated rotors, and polished 20-inch wheels wearing 295/40 Z-rated performance tires.