Mercedes offers 2008 Mercedes-Benz C-Class customers a choice of two V6 engines. The C300 will get a 3.0-liter V6, while C350s will be powered by a 3.5-liter V6. Output in the U.S. marketplace has not been announced, but European models displacing the same volume yield 231 and 272 horsepower, respectively. A seven-speed automatic transmission backs the C350 Sport and C300 Luxury as standard, and is optional on C300 Sport models. Adaptive suspension called Direct Control varies damping to favor comfort or handling, and all-wheel-drive arrives as an option this fall. Twin-spoke rims measure 17 inches in diameter, but Sport sedans get exclusive 18-inch wheels and tires.