My vehicle malfunctioned Driving on my way to work entering a large parking area connected stores. I saw a available parking spot in between 2 cars I drove in the spot lined up car and put my car in park completely stopped.I looked to my right then to my left to be sure I wasn't to close to the other two vehicles then I opened my drivers door to check if I was within the line.I was just on the line.As soon as I shut the door the doors locked the engine roared so loud I thought it was going to explode then the safety belt latched on so tight pulled me back at same time the car plummeted forward extreme acceleration into a brick building. Instantly the bags deployed as I halted forward I put up my arms up panic knowing I was going into the bldg once impacted hit bldg I heard a loud screech sound.once hit the car instantly reversed backwards at this same extreme speed I then was going backwards. I managed to step my foot on the break it stopped the car. I was about 65 feet when it completely stopped in reverse. I opened the door and fled got got my belt off.The impact with bags was pain was excruciating did save my life. I don't know how I survived this accident. My car was in park gear ignition still on. This car completely malfunctioned.Previous engine light on for 3 to 4 day. I need this investigated with the box It will show reading I was in park .The insurance company will not provide this box data to me and Dealership is unreachable.