Audi of America, Inc. offers a line of luxury vehicles that include the Audi A3 sport compact; the sporty A4 and S4 sedans, Avant, and Cabriolet models; the high-performance RS 4 sport sedan and Cabriolet; the all-new S5 coupe with a 354-horsepower engine; the A6 sedan and Avant; the V10-powered high-performance S6 sedan; the Audi Q7 performance SUV; the TT Coupe and Roadster models; and the R8 mid-engine sports car. Audi's 270 dealers sold 90,116 vehicles in the United States during 2006