I hope you don't mind me playing with the code a bit...
I had a model of a VolksWagen GTI (I think it's called the Lupo in Europe) that I had made for a friend many years back, just sitting on my HD. So I imported it to B3D and slapped it into your verlet car code. I also made a tiny stunt track. The models (B3D) and code (bb, not exe) are in a zip here:
http://www.almackey.com/verletvw.zip
I had a model of a VolksWagen GTI (I think it's called the Lupo in Europe) that I had made for a friend many years back, just sitting on my HD. So I imported it to B3D and slapped it into your verlet car code. I also made a tiny stunt track. The models (B3D) and code (bb, not exe) are in a zip here:
http://www.almackey.com/verletvw.zip