Such a great mod for Race07! Looks nice, runs great and the car is really fun to drive. Only complaint is that the Ai seams to struggle a bit, oversteering and losing speed down the straights (I noticed it on Falkenberg 2010 with the Ai set to 99%) but they still race fast most of the time :)
You can copy an .aud file from a car you have installed and then rename it and replace 'TTA.aud' in ...race07\Gamedata\Teams\STCC_2015