CAR STALLED WHILE DRIVING DOWN THE INTERSTATE. CAR WENT INTO NEUTRAL AND WE WERE ABLE TO PUSH BUTTON START. EXITED THE INTERSTATE AND STAYED ON SERVICE TO REMAIN SAFE. PASSENGER RESTRAINT SYSTEM NOTIFICATION APPEARED STATING TO REMAIN IN SAFETY BELTS AND CONTACT SERVICE CENTER. CAR HAD BAD SMELL AND SMOKE CAME FROM REAR HATCH. CAR IN FLAMES IN LESS THAN ONE MINUTE. WE HAVE POLICE REPORT, VIDEO, PICTURES, INSURANCE REPORTS ETC. BMW NEEDS TO BE ACCOUNTABLE AND OTHERS WARNED ABOUT THESE HAZARDS,