700HP Audi S8 Plus Quattro 4.0 TFSI V8 Biturbo Drag & Track by turboandstance - June 4, 2018June 4, 2018 Today we want to share a video which features a beast! 700 HP 4.0 TFSI V8 Biturbo tuned Audi S8 Plus racing among several supercars during a track event in Germany! The S8 is not really the ideal car to use on a racetrack and it was quite impressive to see it in action! Watch the video below and leave a comment. Leave a comment