ATTEMPTED TO BACK OUT OF DRIVEWAY. CAR FULLY ACCELERATED ON ITS OWN, CAUSING IT TO CROSS STREET AND UP INTO NEIGHBORS YARD. ATTEMPTED TO MOVE GEARSHIFT INTO NEUTRAL,, BUT ACTUALLY MOVED TO "DRIVE", CAUSING CAR TO CROSS BACK INTO STREET AND CRASH INTO A BRICK (BLOCK) WALL. FINALLY TURNED IGNITION OFF. *TR