This 2008 Audi RS4 was delivered new to Royal Automotive Group of San Francisco, California and was acquired by the seller in 2011. Finished in Phantom Black Pearl over black leather, the car is powered by a 4.2-liter V8 that drives all four wheels through a six-speed manual transmission and Quattro all-wheel drive. Features include the Titanium package, an aftermarket Tubi Style exhaust system, a Bose sound system, Audi Navigation Plus, automatic climate control, front and rear heated…