2008 audi rs 4 review this car review is specific to this model, not the actual vehicle for sale. The audi rs 4 is the highest performance version of the a4, sitting above the s4 in the lineup and offering an uncompromising driving experience. Previously only offered as a sedan, it is now also available in a limited-production two-door cabriolet body style for 2008. At the heart of the race-bred rs 4 is a high-revving 420 hp 4. 2-liter v8 engine featuring fsi direct fuel injection. A six-speed manual transmission and audi's quattro all-wheel drive system transfer power to the ground. Exclusive standard features include dynamic ride control, 19-inch alloy wheels, adaptive headlights and carbon fiber interior trim elements. Options for the rs 4 sedan include a bose audio system, six-disc cd changer, navigation system and heated rear seats; these features are standard on the cabriolet. The rs 4 sedan is a carryover from the 2007 model year; for 2008, a cabriolet version joins the lineup. All rs 4 sedans get standard satellite radio and bluetooth wireless connectivity for 2008, along with two new packages: a titanium package and an audi exclusive package. CD Changer✔ Navigation System✔ Bluetooth✔ Alloy Wheels