I WAS DRIVING SLOWLY UP A SMALL SLIGHT HILL, MADE A RIGHT TURN, THEN ANOTHER QUICK RIGHT TURN TO DRIVE STRAIGHT INTO A PARKING SPOT LOCATED IN A CONDO PARKING LOT AND TOOK MY FOOT OFF THE GAS TO PUT IT ON THE BRAKE. I WAS PROBABLY GOING 2 TO 3 MPH. A PERSON COULD HAVE OUTWALKED THE CAR. SUDDENLY THE CAR SEEMED TO HAVE A MIND OF ITS OWN AND LURCHED FORWARD. I PRESSED DOWN HARDER ON THE BRAKE, BUT IT DIDN'T STOP. IN ADDITION TO GOING FORWARD, THE CAR ALSO WENT ON A SLIGHT ANGLE TO THE RIGHT. AT SOME POINT I MUST HAVE PUT THE CAR INTO PARK, BECAUSE WHEN I WENT TO BACK UP AFTER HITTING A FIRE HYDRANT, THE CAR WAS IN PARK. THE FIRE HYDRANT WAS LOCATED IN A PLANT AREA LOWER THAN THE PARKING SPOT SURROUNDED BY A CURB. I AM UNSURE IF I ACCIDENTALLY PUT MY FOOT BACK ON THE GAS, BUT IT SEEMS TO ME THAT IS VERY UNLIKELY. I HAVE BEEN DRIVING FOR OVER 40 YEARS AND THE MOTION FROM THE GAS TO THE BRAKE IS A HABIT. I HAVE RESEARCHED THE WEB AND THERE ARE REPORTS FROM OTHERS THAT FORD FUSIONS HAVE LUNGED FORWARD WHEN TAKING THEIR FOOT OFF THE GAS AND PUTTING ON THE BRAKE. I WAS THE ONLY PERSON IN THE CAR AND THE ONLY ONE INVOLVED IN THE ACCIDENT AND I WAS NOT INJURED. THERE WERE NO WITNESSES.