2001 Lexus LS430

I TURNED AROUND IN A PARKING LOT BY BACKING UP AND REVERSING MY DIRECTION, AFTER I REVERSED MY DIRECTION THE CAR SHOT FORWARD WITHOUT MY FOOT ON THE GAS PEDAL. I KEPT PUMPING THE BRAKE HOPING IT WOULD STOP AND I SHOT OUT OF THE PARKING LOT INTO THE LINE OF TRAFFIC AND AVOIDED TWO LANES OF CARS DRIVING WEST UNTIL I COLLIDED WITH A CAR HEADING EAST. IT RIPPED OFF THE FRONT BUMPERS OF BOTH CARS. I FELT TRAPPED IN THE CAR AND COULD NOT CONTROL IT. IT JUST KEPT ACCELERATING. I WISH THAT I HAD THE PRESENCEOF MIND TO TURN OFF THE KEY OR PUSH THE AUTOMATIC LEVER TO NEUTRAL OR EVEN REVERSE. BUT IT ALL HAPPENED IN A FEW SECONDS AND I JUST DIDN'T HAVE THE PRESENCE OF MIND TO DO ANYTHING BUT STEP ON THE BRAKE PEDAL. JUST ONCE BEFORE, SOME MONTHS AGO, I WAS PARKING THE CAR IN A PUBLIC GARAGE AND IT ACCELERATED QUICKLY ASI REACHED AN OFF RAMP. LUCKILY I WAS ABLE TO TURN THE STEERING WHEEL AND NEGOTIATE THE CAR AROUND THE CORNER ONTO THE RAMP. IT SCARED ME, BUT I THOUGHT IT WAS JUST A FREAK INCIDENT AND THOUGHT NO MORE ABOUT IT BECAUSE I WAS ABLE TO SLOW THE CAR DOWN ONCE I WENT ROUND THE CORNER. BUT THIS LATEST TIME I COULDN'T STOP IT AND THE CAR IS A TOTAL WRECK. *TR