issue in racing game

I made a endless car racing game, which have an issue of smoothness. Cars run wath a very minor jerking which effects the smoothness of the game. I m using box colliders for cars and other objects. How can i make smooth the race??

Turning on rigidbody interpolation for the cars may fix the issue.

Thnx I put my code in Fixedupdate and it works…:slight_smile: