MTM Unleashes 720 HP from the Audi RS6
3 May 2010, 11:58 UTC · By: Dan Mihalascu / Even though German tuner MTM works on Volkswagen, Seat, Skoda, Bentley, Lamborghini, KTM, Spyker and Porsche, it has a soft spot for Audi. The founder of MTM was actually an engineer on the team...