I mean this will all do respect I am not getting angry I just read your post agian and relize what your saying, and I agree we should know why they safety equipment failed. from the looks of things I would say that the guard rail cutting into the frame had something to do with it as for the helmet I do not know. most of these cars are teched as adv. et because the nhra goes by et not caliber of car, would be my guess. Again I apologize for the message, Where you there this year? what car? Bob