attan thats the point. hes saying the movement in general is broken.
a car does not bounce straight back when it hits a wall at an angle. the energy should be transfered, and there should be minimal bounce with the car continuing to move forward along the wall, even when driving perpendicularly straight into a wall there would be little to no bounce.
edit: i just read your post again and realized the wording. either youre being sarcastic or ignorant. neither of which translates well on the internet. either way the movement is unsatisfactory.