2011 Audi RS5 is already in showrooms and Audi car fans can afford it just for 72000 Euros - about $92,000 USD.2011 Audi RS5 has 4.2l V8 450 hp engine with electronically limited top speed of 250 km/h. With MTM’s V-Cantronic device, which removes the factory speed limiter, the top speed can be increased to 303 km/h