WHEN I WAS PULLING SLOWLY INTO MY REGULAR PARKING SPACE AT WORK, MY 2005 PRIUS SUDDENLY SURGED FORWARD AND SMASHED INTO A CEMENT WALL THAT WAS ABOUT 4 - 6 FEET IN FRONT OF ME. THERE WERE CARS PARKED ON EACH SIDE OF ME; I DIDN'T HIT EITHER OF THEM. I WENT STRAIGHT INTO THE WALL AT THE FONT OF THE PARKING SPACE. NO WATER OR ICE OR BAD CONDITIONS WERE PRESENT. THE SURGE WAS MUCH FASTER THAN WOULD HAVE OCCURRED HAD I MISTAKENLY HIT THE ACCELERATOR RATHER THAN THE BRAKE. OVER $3300 WORTH OF DAMAGE WAS DONE TO THE FRONT OF MY CAR. MY ANKLE BONE WAS CHIPPED, MY WRIST WAS SORE, I HAD MINOR WHIPLASH. I WAS ALONE IN THE CAR. I FEEL STRONGLY THAT THIS WAS NOT A RESULT OF DRIVER ERROR ON MY PART, NOR DO I THINK IT IS A RESULT OF THE FLOOR MAT CATCHING THE ACCELERATOR. WHAT I EXPERIENCED MATCHES MUCH MORE CLOSELY WITH DESCRIPTIONS OF A FLUKE COMPUTER ERROR CAUSING THE CAR TO SURGE FORWARD WHEN I TOUCHED THE BRAKES. IT WAS A STRONG, FAST AND SUDDEN SURGE; MUCH MORE POWERFUL THAN WHAT I EXPERIENCE WHEN I USE THE ACCELERATOR. I REPORTED THE INCIDENT TO TOYOTA (REFERENCE #200710181201). THEY SENT SOMEONE OUT FROM THE CHICAGO REGIONAL OFFICE TO INSPECT THE CAR IN MINNEAPOLIS. THEY CLAIMED EVERYTHING WAS WORKING FINE AND REFUSED TO DO MORE. AFTER I EXPLAINED THE SITUATION AND MY FEAR ABOUT DRIVING MY CAR, THE LOCAL WALSER TOYOTA DEALER DID ANOTHER VERY THOROUGH CHECK AND RESET ALL OF THE ELECTRONIC COMPONENTS. IT HAS WORKED FINE SINCE. PRIOR TO THIS 2007 INCIDENT THERE WERE A COUPL