Audi introduces a new performance trim to its 2008 line-up, the RS4 cabriolet. Initially released in the returning sedan trim, the RS4 is powered by a 4.2L V8 engine boasting 420 horsepower, which is coupled to a six-speed manual transmission. Features include large brakes, 19-inch tires, dual-zone climate control, a power glass moonroof, Nappa leather seats, and a six-disc CD changer. Available options on the RS4 include rear side impact airbags, an iPod connection, exclusive exterior paint choices, and several luxury equipment packages. The optional Exclusive Package adds unique floor mats, specialized black and red interior trim, and additional badging.