I HAD JUST MADE A RIGHT TURN INTO A PARKING SPACE PROCEEDING AT ABOUT 2 MILES PER HOUR WITH MY FOOT ON THE BRAKE AND WAS ABOUT TWO FEET FROM THE END OF THE SPACE, ABOUT TO TURN OFF THE ENGINE, WHEN SUDDENLY THE CAR ACCELERATED FORWARD, WENT OVER A BUMPER, AND PROCEEDED TO GO DOWN A HILL, PART ON SOME CONCRETE STAIRS AND PART ON GRASS. I BRAKED ALL THE WAY AND STOPPED AT THE BOTTOM OF TWO SETS OF STAIRS. SWITCHED CAR INTO NEUTRAL, ENGINE WAS RACING, AND TURNED OFF ENGINE. CAR WAS TOTALLED. NO INJURIES.*AK