AS WE WERE PULLING UP TO STOP LIGHT CAR DIED, WOULD NOT START BACK UP. SMOKE STARTED COMING OUT FROM UNDER THE HOOD AND IMMEDIATELY FLAMES. TOTAL LOSS OF CAR BURNED THE COMPLETE MOTOR ALL THE WAY BACK TO THE DASH. WE WERE ON A CITY STREET INTERSECTION. WE HAD JUST BEEN TO NISSAN HAVING CAR SERVICED, OIL CHANGE.