Audi's 2003 product line-up is infused with excitement with the debut of a new performance model and an open-air variant of the 2003 A4. One of the most powerful Audi sedans sold in the United States to date, the RS6 is propelled by a 4.2-liter twin-turbocharged engine that produces 450 horsepower. The high-powered 2003 Audi RS6 is standard equipped with quattro all-wheel drive, Dynamic Ride Control suspension and 18-inch wheels. For 2003, a third body style is introduced with the Audi A4. In addition to the four-door sedan and Avant wagon, the 2003 Audi A4 is now available as a two-door coupe cabriolet. Equipped with a power-folding soft top, the A4 Cabriolet features distinctive styling compared to the sedan body style. A six-speed automatic transmission is now available on the base version of the Audi TT.