CAR WAS RUNNING WITH THE SHIFT IN THE PARK POSITION FOR APPROXIMATELY 5 OR 6 MINUTES. SUDDENLY IT STARTING ROLLING FAST IN REVERSE. I WAS STANDING NEXT TO THE CAR ON THE PHONE AND WHEN IT STARTED TO ROLL DIDN'T REALIZE HOW FAST IT WAS MOVING SO I TRIED TO JUMP IN TO STOP IT. I WAS UNABLE TO MAKE IT IN TO THE CAR, FELL AND ROLLED UNDERNEATH IT AND THE FRONT TIRE RAN OVER THE RIGHT SIDE OF MY BODY. THE CAR CONTINUED TO MOVE FAST UNTIL IT CAME TO A HILL WHERE IT THEN TURNED AROUND IN TO THE FORWARD POSITION (NOT IN REVERSE) AND STARTED MOVING VERY SLOWLY UNTIL IT HIT A TREE AND STOPPED. I SUSTAINED A CRUSH INJURY TO MY RIGHT SIDE, FRACTURING ALL OF MY RIBS IN MULTIPLE PLACES (FLAIL CHEST). WAS TAKEN TO A LEVEL 1 TRAUMA HOSPITAL AND ADMITTED IN TO INTENSIVE CARE. SPENT A NUMBER OF WEEKS IN THE HOSPITAL AND A 6 MONTH RECOVERY AT HOME. STILL HAVE OPEN FRACTURES. WHEN THE CAR WAS CHECKED BY THE POLICE IT WAS STILL IN PARK WITH THE IGNITION IN THE RUNNING POSITION ALTHOUGH THE CAR WAS NOT RUNNING. SOMETHING WENT SERIOUSLY WRONG WITH THE TRANSMISSION THAT DAY. *JS