Audi RS4 vs BMW M3 Competition – TOP SPEED – Acceleration – 290+ KM/H Acceleration & Sound Street Races by turboandstance - January 23, 2019March 3, 2019 The BMW M3 Competition and Audi RS4 both have 450 horsepower turbocharged six cylinders under the bonnet. These drivers decided to use the full power of the cars on an unlimited stretch of Autobahn. In the video we can see them do several sprints to top speed, while the 200 kg