ON JULY 4 2017 AT APPROXIMATELY 7:30AM ET I WAS WAITING TO PARK AND HAD MY FOOT ON THE BRAKE WHEN SUDDENLY THE ENGINE REVVED AND ACCELERATED, MOVING THE CAR FORWARD AND CRASHING INTO THE PASSENGER REAR BUMPER OF A PARKED FORD F-150. I PRESSED EVEN HARDER ON THE BRAKES AND THE CAR CONTINUED TO MOVE FORWARD AS IF IT WAS SLIDING ON ICE; IT CREATED TIRE SKID MARKS FROM MY FRONT TIRES - SUPPORTING THAT THE BRAKES WERE ENGAGED. I ATTEMPTED TO PUT THE CAR IN NEUTRAL AND THE ENGINE CONTINUED TO REV FASTER. THE NOSE OF MY CAR WAS LOWERED DUE TO MY PRESSING ON THE BRAKES AND AS A RESULT THE FRONT END OF MY CAR WENT UNDER THE BUMPER OF THE TRUCK AND BEGAN LIFTING THE TRUCK UNTIL IT FINALLY CAME TO A STOP. THE CONDITIONS WERE SUNNY AND THE ASPHALT WAS DRY. ON FRIDAY JUNE 23 AT APPROXIMATELY 2:00PM ET I WAS BACKING DOWN MY DRIVEWAY, WHICH HAS A SLIGHT VERTICAL DECLINE, SO THE BRAKES WERE ENGAGED. THE CAR'S ENGINE SUDDENLY REVVED AND ACCELERATED DOWN THE DRIVEWAY INTO THE STREET; ONCE AGAIN, IT FELT AS IF I WAS SLIDING. THE BRAKES WERE FULLY ENGAGED. I WAS ABLE TO PLACE THE TRANSMISSION IN NEUTRAL AND THE CAR CAME TO A STOP. I PLACED THE CAR IN PARK AND TURNED OFF THE ENGINE AND RESTARTED WITHOUT ANY ISSUE. REGARDING THE JUNE 23 INCIDENT, THE CAR WAS NOT DRIVEN FOR APPROXIMATELY 6-8 DAYS. RELATING TO THE INCIDENT ON JULY 4; THE LAST TIME THE CAR WAS DRIVEN WAS ON JUNE 23. FROM JUNE 23 THROUGH JULY 4 THE CAR WAS PARKED AT THE AIRPORT. THE ONLY PARALLEL THAT I CAN DRAW BETW