This 2003 Audi RS6 is finished in Daytona Grey Pearl Effect over silver Nappa leather and is powered by a twin-turbocharged 4.2-liter V8 mated to a five-speed automatic transaxle and Quattro all-wheel drive. Factory equipment includes the Warm Weather and Sports Exhaust packages, heated front and rear seats, Bose audio, dual-zone automatic climate control, and cruise control, while modifications consist of 19″ Avant Garde M510 wheels, an MTM TCU tune, Hotchkis sway bars, a Cupra R-style front…