This is Project Wildfire's Trans Am mod. It is a circa 2004 Trans Am mod including the Chevrolet Corvette, Ford Mustang, Dodge Viper, and Jaguar XKR.
In the folder you will find the 1024 mod, the 512 mod the ride height fix, and a PTA Utility tool for switching out the mod and sounds.
All credit goes to the good folks who were Project Wildfire, who opened the door to modding NR2003.
The mod of course is built around the pta physics.
Enjoy,
Highbank