Secrets of speed part1

Some old document telling about 4wd history and Audi using it. I think I found it from web several years ago. Quality quite crap, so is the original video too. Suomeksi: Audimiehet hehkuttaa

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Secrets of speed part2
Audi goes to Sport car club of America with quattro cars in 1988. Suomeksi: Audi hehkutus jatkuu





Secrets of speed part3
Audi goes to IMSA GTO series with its quattro.





Secrets Of Speed: Unfair Advantage
One of my favorite racing documentaries of all time! A look into the history and racing success of Audi's Quattro All-Wheel-Drive. I cleaned up the video and audio as much as possible.





Quattro - test Torsen
Test diferenciálu Torsen




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