New Audi S8 Tuned by ABT: Gets 640 HP
8 May 2014, 15:21 UTC · By: Mihnea Radu / Since Audi won't offer an RS8, it's up to the tuning industry to deliver amazing full-sized Audis with lots of power. This next project shows what ABT Sportsline can do to the S8 if you�...