I recently was in a head on collision. I am just a dumb fireman that needs an answer about my survival. I would like to know how many g's I was subjected to in my crash. They checked the event data recorder in my 2011 Ford Fusion and found that I was going 42 mph and in the same instance I went 4 mph backwards. The police said I should not have survived but here I am. I weight 175 lbs. The other car was about 600 pounds more than mine. I was belted in and the air bag did deploy. I am suffering a concussion and although I never lost consciousness I lost about 8 minutes of memory. I just would really appriciate an answer to help me cope. Thanks George If you need any more info please let me know.