TL*THE CONTACT OWNS A 2004 GMC ENVOY. WHILE DRIVING APPROXIMATELY 45 MPH ON NORMAL ROAD CONDITIONS, THE CONTACT REAR-ENDED THE PRECEDING VEHICLE. THERE WERE NO DAMAGES TO THE VEHICLES OR THE OCCUPANTS. HE PULLED OVER TO THE SIDE OF THE ROAD AND NOTICED SMOKE SUDDENLY APPEARING FROM THE FRONT END OF THE VEHICLE. IMMEDIATELY, THE PASSENGER COMPARTMENT BECAME ENGULFED IN FLAMES. THE CONTACT SAFELY EXITED THE VEHICLE. THE POLICE AND FIRE DEPARTMENTS WERE CALLED TO THE SCENE AND A REPORT WAS FILED. THE VEHICLE WAS COMPLETELY DESTROYED AND TOWED TO A COLLISION CENTER. THE INSURANCE COMPANY WAS NOTIFIED; HOWEVER, THE CAUSE OF THE FAILURE HAS NOT YET BEEN DETERMINED. THE VIN WAS UNKNOWN. THE FAILURE AND CURRENT MILEAGES WERE 75,000.