I WAS PARKING HEAD-IN TO PARKING SPOT. AS I REACHED THE FINAL SPOT, AND WAS SHIFTING GEAR TO P (PARKING), THE CAR TOOK OFF LIKE A "ROCKET" AND JUMPED THE CURB. THIS CAUSED DAMAGE TO THE CAR PARKED IN THE NEXT PARKING SPOT AND MY CAR. THE OTHER CAR HAD TO BE TOWED. I WAS ABLE TO STILL DRIVE MY CAR. THIS HAPPENED AT AN OFFICE BUILDING OUTDOOR PARKING LOT. PEOPLE STANDING OUTSIDE THE BUILDING (FOR SMOKING OR OTHERWISE) WITNESSED IT ALL. THEY ALSO INDICATED THAT THE CAR WENT LIKE A ROCKET AND THEY HAVE NEVER SEEN ANYTHING LIKE THIS.