WHILE DRIVING AT NORMAL HIGHWAY SPEED ALL OF A SUDDEN VEHICLE CUT OFF. DRIVER WAS ABLE TO PULL TO THE SIDE OF THE ROAD SAFELY, TURNED OFF THE IGNITION, AND GOT OUT OF VEHICLE. THIS WAS WHEN DRIVER AND FAMILY NOTICED VEHICLE WAS ON FIRE. VEHCLE WAS TOWED TO THE DEALERSHIP. CV BOOT EXPLODED AND THREW GREASE ONTO THE CATALYTIC CONVERTER, WHICH STARTED THE FIRE. VEHICLE WAS BEING REPAIRED. PLEASE PROVIDE ANY FURTHER INFORMATION. *AK