WHILE STARTING UP THE CAR AND SHIFTING TO REVERSE, THE CAR ACCELERATED UP TO A HIGH SPEED. I WAS NOT ABLE TO STOP THE CAR UNTIL IT HIT A TREE AND THE IMPACT OF THE CAR CAUSE ME TO HIT THE GEAR SHIFT TO PARK. THE REAR END WAS DAMAGED ENOUGH THAT MY INSURANCE COMPANY TOTALED IT . THE DISTANCE OF TRAVEL BEFORE THE IMPACT WAS LESS THAN 20 FEET. I HAVE HAD TO HAVE A TRANSMISSION REPLACED AS A RESULT OF A SAFETY RECALL (2003). *TR