Turn the sound up, mega vids.
Go to this page and get the 2 sounds ones about 1/4 way down. Dont worry no german voiceovers or music, just roaring engines. About 4 mins long each.
http://www.audirs6.ch/videos/http://www.audirs6.ch/videos/
http://www.audirs6.ch/videos/bilder/best_of_sound.jpg
http://www.audirs6.ch/videos/bilder/sounds_drifts.jpghttp://www.audirs6.ch/videos/