The 2009 Audi S5 is part of the high-performance S-series from the German automaker Audi. This car, integral to the first generation of A5, sets a benchmark with its well-balanced blend of luxury and performance. Under the hood lies a robust 4.2L V8 engine that produces 354 horsepower, paired with either a six-speed manual or a six-speed automatic transmission powering the Quattro all-wheel-drive system. In terms of features, the S5 provides a lavish interior outfitted with Audi's MMI infotainment system, navigation, a Bang & Olufsen audio system, along with safety features like anti-lock brakes, stability control, and a multitude of airbags. Its unique blend of aesthetic appeal and performance has secured the S5 a special place in the luxury sports coupe segment.