here is a clip of a promotional video from Racetech seats. it shows what can happen in a frontal impact, a side impact without head restraint, and side impact with head restraint(this looks like an early design as my seat looks different). clip here
One of our team mates was killed in a side impact crash at Buttonwillow last year, and this shows dramaticly what can happen in a crash. I ask everyone to look at their safety gear and look at upgrading their seat.