Race 1000 Audi S4 1000+hp 298km/h HST Turbotuning Half Mile Drag & Track by turboandstance - November 24, 2017November 24, 2017 HST Turbotuning Audi S4 B5 doing some runs at the RACE1000 event which is being held for seriously powered cars with appr. 1000HP. He did 2 runs at the event. 1. Run 281km/h 2. Run 298 km/h! Watch the video and leave a comment below. Leave a comment