WHILE BACKING OUT OF MY DRIVEWAY, THERE WAS A SOUND, AND THE CAR SUDDENLY ACCELERATED AND COULD NOT STOP WHEN PRESSED THE BRAKE AND THE PARKING BRAKE. CRASHED INTO THE NEIGHBOR'S YARD WITH SUCH FORCE THAT THE CAR ROLL OVER. IT COULD HAVE CAUSED SERIOUS INJURY TO ME, A PASSERBY, OR NEIGHBOR'S CHILDREN.