I did 3.6s 0-60mph on the streets just by going from 19s Conti DWS06 to 18s MPS4S. Dragy was 12.1s with DWS06, down to 11.9s with the MPS4S. Wheels/tires play a big roll with launch. If you check my video below, played at .5 playback speed, you can see I launch before the green, but wheel spin keeps me in place for that split second before the green shows. xDrive with the wrong tires will kill your times.