ON THE MORNING OF OCT 25,2018 I ENTERED MY 2014 NISSAN ALTIMA APPROX 7:15 AM AND PUT VEHICLE IN REVERSE, TRAVELED APPROX 20 FT PUT CAR IN PARK TO RUN IN FOR SOMETHING I HAD FORGOTTEN. I SAFELY EXITED THE VEHICLE , CLOSED THE DOOR AND WALKED THE 20 FT TO MY 3 STEPS AND APPROACHED MY DOOR TO MY HOME AS I STARTED TO UNLOCK THE DOOR I HEARD A POP AND TURNED AROUND AND OBSERVED MY CAR LEAVING THE DRIVEWAY , IT HAD GONE INTO REVERSE AND CROSSED THE STREET WHERE IT STOPPED AGAINST A GRANITE WALL DAMAGING THE TRUNK.