I WAS PARKING MY 2015 HYUNDAI SONATA TURBO SPORT IN A STRIP MALL PARKING LOT. I PULLED INTO THE SPACE AND, BEFORE GETTING IN ALL THE WAY, THE CAR SUDDENLY ACCELERATED TO A HIGH SPEED, JUMPED THE CONCRETE CURB AND SLAMMED INTO A CONCRETE WALL. THE AIR BAG DID NOT DEPLOY AND MY CHEST HIT THE STEERING WHEEL AND MY HEAD WHIPPED BACK SO I NOW HAVE HEADACHES, NECK AND BACK PAIN.THE FRONT BUMPER WAS DAMAGED WITH MARKS FROM THE CONCRETE AND THOUGH IT REMAINED ON THE CAR, IT WAS DISLODGED. THERE WAS ALSO SOME DAMAGE AROUND THE FRONT HEADLIGHTS AND THE RUBBER PART OF THE UNDERCARRIAGE.