I personally wouldn't put a whole lot of credence in that video/test, it may have a lot of scientific conclusions, but that is a sold concrete barrier, and a head on hit, that might be considered an extreme case, but the bottom to top is in my opinion, totally bogus, and truthfully, a waste of at least two chassis. I know, it can happen, but your chances are better on the track, than sometimes off the track. JMHO! Bob