Listen to the roar as the Audi S5 with Capristo exhaust goes head-to-head with the BMW M3 E92 V8 equipped with HMS Stanic Performance. This sound battle compares the deep tones of German ...

The quad exhaust pipes are a bit of a giveaway that this particular prototype is the future BMW M340i – the last stop in the 3 Series line-up before the full-fat BMW M3 – as are the 20-inch ...