Audi's performance team obviously had plenty of creative juices left after completing the R8. With a 354-horsepower V-8, an optional Bang & Olufsen sound system, and the boldest beltline since the BMW 335i coupe, the A5-based S5 is a great combination of performance, onboard gadgetry, and gorgeous exterior styling. Check out our of Ingolstadt's new M3 killer.
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