WHILE DRIVING APPROXIMATELY 65 MPH WINDSHIELD STARTED TO FOG UP. DRIVER ROLLED DOWN WINDOW FOR DRIVER'S DOOR WHEN A "POPPING" NOISE COULD BE HEARD, AND FLAMES COULD BE SEEN COMING FROM VEHICLE. WHEN VEHICLE WAS STOPPED, HEAVY SMOKE STARTED COMING FROM UNDER THE HOOD, AND VEHICLE WAS ENGULFED IN FLAMES. A FIRE LIEUTENANT SUSPECTED THAT FIRE WAS DUE TO LEAKING FUEL IN ENGINE COMPARTMENT. VEHICLE HAS NOT BEEN INSPECTED BY THE MANUFACTURER OR INSURANCE COMPANY. PLEASE PROVIDE ANY ADDITIONAL INFORMATION / DOCUMENTATION.*AK