I WAS AT THE STOP SIGN ATTEMPTING TO MAKE A RIGHT TURN FROM A BANK PARKING LOT, WHEN THE CAR STARTED TO ACCELERATE TO THE LEFT WITH GREAT SPEED TOWARDS A MAJOR HIGHWAY JUST A FEW FEET AWAY. I TURNED MY WHEEL TO THE LEFT SO TO AVOID GETTING ON THE HIGHWAY AND BE HIT BY TRAFFIC. MY CAR WENT OVER THE METAL FENCE , THEN OVER A HILL AND ENDED UP ON TOP OF ANOTHER SET OF NEW CARS AT THE NISSAN DEALERSHIP. BOTH SIDE AIRBAGS DEPLOYED. THE CAR IS TOTALED. THE CAR TOTALLY LOST CONTROL....AT THIS TIME I DO NOT HAVE PICTURES OR A POLICE REPORT AVAILABLE.