If 3d model car gets bumped goes through wall

If the 3d model car gets bumped by another 3d car that is being tweened through the maze, it sometimes gets bumped through the wall (that it is supposed to seperate from) and it can’t re-enter the game.

And sometimes if I backup the car to the wall the camera goes to the other side of the wall. I use the following code for the camera:

If I change the distance the car front won’t show up in the cameras view.