Major changes included: The first generation S5 is a highly stylized coupe produced by Audi to replace the S4 coupe and convertible models. The S5 Coupe comes with a 354-hp 4.2-liter V8, while the S5 Cabriolet comes with a supercharged 329-hp 3.0-liter V6. Both coupe and convertible models come standard with Quattro all-wheel drive as well as a 6-speed manual or optional 7-speed twin-clutch automated manual transmission. A Sport rear differential, which varies torque output between the rear wheels for better cornering ability, is also available. Other key features include an electronic stability program, tire pressure monitoring system and Bluetooth phone interface.






