NHTSA Complaint #11423042 — 2011 BMW 328I

My driver and passenger airbags deployed because my car all of the sudden lurched forward on it's own and I bumped the car in front of me and when it happened my car started accelerating and revving all on it's own into the car ahead and I was trying to make it stop by pushing the brakes but the brake pedal wouldnt move it was hard and wouldnt move so my car kept accelerating bumping the car in front of me over and over and I was stomping down on the brake pedal to make it stop but it wouldnt. After about 30 seconds of this it just stopped. The airbags were blowing out very hot air that burned and bruised my left arm very badley and myself and my minor passenger were choking from it. My driver side window and windshield were both broken from the explosion of the airbags but the body of my car wasn't damaged. I had noticed that sometimes the display in my car wouldnt show all the car controls but never imagined the car would malfunction like this. Now the repair shop wants the same amount of money that I initially paid for the car to repair it and my insurance is not covering it. Please help because this was not my fault the car malfunctioned.