4. Pro Driver Influence
To ensure both the M3 and M4 were track ready, BMW worked closely with BMW Motorsport’s professional race drivers during the development phase on both models. DTM drivers Bruno Spengler and Timo Glock took part in the extensive testing and setup work carried out at the world-famous Nürburgring. With engineers working closely with drivers, the result are two high-performance sports cars balanced for the road, but ready to take on the track.