Thank you for your answer, but we have already tried to get root collision to be realistic like, down-z position starts from car’s body, neither zero position nor wheel positions. I’m afraid its not the solution. The weird thing is that, Unreal only detects body(root) collision which means that box you mentioned. It does not recognize wheel collision “if we link wheels to the anim blueprint system”, otherwise collisions works perfectly, but as you can guess, vehicle does not move.