I WAS TRYING TO BACK OUT OF AN EXTENDED PARKING AREA AT CHURCH, A GRASSY AREA WITH PEBBLES. SO, I WAS BACKING OUT VERY CAREFULLY SO AS TO NOT HIT THE ROW OF CARS PARKED BEHIND ME. SUDDENLY AS I WAS BACKING OUT, THE TOYOTA BEGAN TO MOVE BACKWARDS VERY FAST WITH A LOUD ROAR (RACECAR SOUND). WHILE IN A STATE OF TERROR I HAD TO WRESTLE THE TOYOTA AWAY FROM THE OTHER PARKED CARS AS MUCH AS I COULD AND KEEP TRYING TO PUSH THE BRAKE PEDAL DOWN, BUT THE BRAKE PEDAL WOULDN'T MOVE. THE TOYOTA STRUCK A RED CAR THAT DRAGGED THROUGH THE DRIVER'S SIDE, FROM THE FRONT OF THE TOYOTA TO THE END OF THE TOYOTA. STILL WRESTLING WITH THE WHEEL OF THE TOYOTA, I ENDED UP SLAMMING BACKWARDS INTO AN 8T FT. CHAIN LINK FENCE, ON THE CHURCH PROPERTY. MY FOOT STILL ON THE BRAKE, AS THE TOYOTA SLAMS INTO THE FENCE, THE TOYOTA THEN STOPPED. BREAK AND ACCELERATOR PEDAL RETURNED TO WHAT FELT LIKE A NORMAL POSITION. I THEN PULLED THE TOYOTA UP AND AWAY FROM THE FENCE AND OUT A BIT AWAY FROM THE ROW OF CARS , SO THAT I COULD GET OUT OF THE TOYOTA. THEN I ASKED THE YOUNG MAN WHO WATCHED IT ALL, IF HE WOULD GO GET THE OWNER OF THE CAR I HAD DAMAGED.