It's not at all clear that there's much anything could do to help save you if you hit a concrete wall in a 3500lb automobile at 180mph. Ask anyone who has driven these cars (like me, if you don't know anyone else): go flip floping head over tail down a straightaway in a fireball and you'll just have to hold on and wait for your momentum to bleed and for the ride to stop; your rollcage will save you.
But if you hit the wall head on at speed: you won't walk away easily.
/jordan