how can I fix .SetActive ruining rigidBody physics?

Hi,
I am trying to make a racing game, and the physics were pretty much the hardest things I faced, yet there’s a big problem. When I .SetActive(true) a car object (which has a rigid body attached to it and moves with), it just slips when I add force to it even though I increased its materials’ friction and so with the terrain’s. Thanks in advance!

Are you sure the problem is related to the .SetActive()? I mean, if you directly start with the car in a scene it doesen’t slip?
If the problem is the .SetActive(), the easiest alternative is to instantiate the car.

I hope it helps,
Uri.