Introduction
The RS 4 is the new high-performance sedan and cabriolet from Audi AG’s performance tuning division, quattro GmbH. The RS 4 features new technology such as FSI direct injection technology developed for the Le Mans-winning Audi R8 prototype race car and the latest generation of Audi’s legendary quattro all-wheel-drive system with asymmetrical/dynamic torque distribution. While similar in appearance to the S4 sedan, the only common body panels are the front doors and the roof. The RS 4 receives flared wheel arches, flared side sills, a rear spoiler integrated into the trunk and rear fenders, standard 19-inch 7-spoke alloy wheels, RS design bumpers, diamond-look grille trim and aluminum trim for the grille surround and the side mirrors.