AFTER 650 MILES: MERGING ONTO A HIGHWAY: ENGINE RATTLED. ENGINE DIED. WE COASTED TO THE SHOULDER. WE STOPPED. I PUT THE VEHICLE IN PARK. SMOKE WAS COMING FROM UNDER THE HOOD. LOOKING UNDERNEATH, WE SAW THE CAR WAS ON FIRE. INITIALLY THE FIRE WAS UNDER THE ENGINE. WE GOT AWAY FROM THE CAR AND CALLED 911. THE FIRE DEPARTMENT CAME AND PUT IT OUT. BY THIS POINT IT BURNED THE FRONT 2/3 OF THE CAR. THE CAR GOT TOWED TO AN AUTOMOTIVE TOWING PLACE.