It's official: the Audi RS 4 Cabriolet will be available in the U.S. as a 2008 model, arriving in the fall, 2007. According to Audi, "approximately 300 of the limited-production RS 4 Cabriolets will be sold in the U.S." The RS 4 Cabriolet will share the same 420 hp engine as the RS 4 sedan, and will only be offered as  a six-speed manual. The Cabriolet will have 19" RS 4-style alloy wheels, a four-link front and trapezoidal- link rear sport-tuned suspension with Dynamic Ride Control (DRC), and quattro(R) all-wheel drive with an asymmetrical dynamic torque split. A new $750 titanium package will also be available, which includes titanium colored 19" RS 4- style alloy wheels, black front grille, black side window moldings, black interior headliner, and piano black interior trim.