[source: ABT  Sportline] Will we still be able to refer to car enthusiasts as "petrolheads" in the future? Or will they be seduced by the whisper-quiet punch of electric drives? ABT Sportsline uses a fully operational prototype to provide an exciting glimpse of the future of tuning. The worldwide largest tuner for Audi and Volkswagen vehicles shows how to bring the best of both worlds together. The car, which is based on an already tuned ABT Audi RS6, pushes not only the limits of perfor...