WHILE DRIVING DOWN THE ROAD IN CRUISE CONTROL SET ON 60 CARRYING A TRAILER, LOST ALL THE LIGHTS ON VEHICLE. CONSUMER STOPPED CAR, AND HAS SEEN SMOKE IN THE BACK. WENT TO THE HATCH TO SEE WHERE THE SMOKE WAS COMIING FROM. WHEN OPENING HATCH, NOTICED SOME FLIKERING THAT LOOKED LIKE FIRE. THEN CONSUMER PROCEDED TO TAKE OUT THE BELONGINGS. CONSUMER HAD TO FLAG DOWN SOME HELP AND WITHIN TWO MINUTES THE WHOLE BACK WAS IN ENGULFED IN FLAMES. EARLIER THAT DAY CONSUMER HAD SOME ELECTRICAL WORK DONE. DEALER SAID THAT ELECTRICAL PROBLEMS DID NOT CAUSE THE PROBLEM. *AK