The Audi S4 Cabriolet will make your heart beat faster. The reason for this being its 4.2 litre engine with a power output of 253 kW (344 bhp). And to ensure its power is always transferred to the road in a controlled manner, the S4 Cabriolet offers a feature that is unique among all open-top cars in the world: a combination of a V8 engine with quattro drive. (Fuel consumption over combined cycle: 12.6-13.9 l/100 km; combined CO2 emissions: 302-334 g/km).