PARKED IN PARKING SPACE STARTED CAR PUT IN REVERSE, ENGINE ROARED, ACCELERATED IN REVERSE APPLYING BRAKES DID NOTHING , BOTH FEET ON BRAKES , TURNED WHEEL SO THAT CAR WAS NOT TO HIT PARKED CARS BEHIND US, CAR CONTINUED RACING IN REVERSE WITH CONTINUED APPLYING BRAKES, THRU IT INTO PARK CAR CONTINUED IN REVERSE , TURNED KEY OFF & CAR CONTINURED IN REVERSE UNTIL HITTING PARKED CAR WHICH STOPPED US TOTAL DISTANCE ABOUT 200 FEET, WHICH SEEMED A LOT LONGER,I FELT I DID EVERYTHING CORRECTLY MAYBE IF THROWN IN NEUTRAL BRAKES WOULD HAVE WORKED, VERY FRIGHTING HAVING NO CONTROL TO STOP