That's an excellent contribution!

I only notice two things, first, the car moves slower than in the original demo. And second and probably more important, the collision detection is not 100%, when I crashed the car into the road side, twice the right back wheel sunk into the ground. Took some attempts to move the car out of it.

Apart from that I am very excited that we now have PhysX with Gamestudio.

I'm using the 7.80 beta already, maybe thats why the other people couldnt get it working?