car colliding problem

Hi, I’m using standard unity asset, problem is showed on video:

My question is: how to avoid that effect? I’ve tried some experimental with physics material but nothing helps.
I’m sending also car collider I used and road (just scale it 5 times and give some texture). I used mesh collider on road.[81604-droga-gesto.zip|81604]

You could create a collider mesh in blender or some similar program with smother edges, then set it as convex using mesh collider. Alternatively, you can use sphere or rotated box colliders in the edges of the car. It will make collisions smother.