Nvidia physx and unity3d

Ive seen a few videos on youtube about people using physx and unity 3d to make racing games.Im wandering is there a tutorial to set up physx with unity cause im working on a driving game and would like to use it.Thanks

The PhysX engine is already built into Unity, so if you use Unity’s physics, then you’re using PhysX. In other words, apply a rigid body or forces to any object in your scene, and PhysX is handling it.

oh ok thanks

what about Cloth Physic in PhysX, does unity support it too?

No.