Yup, its really bad. Just via google you can find several of them ripped in half. You would have thought that even the batteries themselves could do better than that without any chassis around them at all. There is some metal in there but it looks like its just a few rods used for holding the batteries in place and to stop the door flexing too much, other than that its basically just plastic. I tired looking up the chassis for it but the best photos of the chassis are of the "car" ripped in half. It would seem that the doors are stronger than the safety cell itself.