1992 Audi S4 IMSA GTO vs 1989 Audi 90 IMSA GTO | 5-Zylinder 20V Turbo Amazing Sounds! Drag & Track by turboandstance - July 30, 2020 In this video you’ll see two of the most iconic Audi racecars ever made; the 1992 Audi Quattro S4 IMSA GTO and the 1989 Audi 90 Quattro IMSA GTO. Both are powered by the iconic Audi 5 Cylinder turbo, a 2.2 liter 20V inline-5 turbocharged engine! Watch the video and follow us also on Facebook, Pinterest or Instagram! Leave a comment