Audi Sport Quattro (Dahlbäck 560hp) at Vaaler Raceway
Described as Sport Quattro, rallye Sport Quattro and S1 by former owners.
Driven at Vaaler Raceway, Norway, at the annual trackday event of VW - Audi
Club Norwegen in 2004.
Courtesy: VW - Audi Club Norwegen, S-sentrum.no
Source: VW - Audi Club Norwegen DVD 2004
Brutal Audi UR Quattro
The original version (with no music) can be found here:
The song at the beginning is from the movie Days of Thunder.