WE PARKED OUR 2000 FORD EXPEDITION XLT IN FRONT OF OUR HOUSE AFTER DRIVING IT APPROXIMATELY 45 MILES TOWING OUR BOAT. WE ARRIVED AT OUR HOUSE AROUND 9:15PM. AT AROUND 10:30PM, MY NEIGHBOR KNOCKED ON MY DOOR AND TOLD ME THAT MY CAR WAS ON FIRE. FLAMES WERE COMING OUT FROM UNDER THE HOOD AND THE LEFT-FRONT TIRE WAS ON FIRE. 2 NEIGHBORS AND I SPRAYED THE VEHICLE WITH GARDEN HOSES UNTIL THE FIRE DEPARTMENT ARRIVED. THEY HAD TO RIP THE HOOD OFF THE VEHICLE IN ORDER TO PUT THE FIRE OUT. AFTER INSPECTING THE BURN DAMAGE, THE FIREMAN INDICATED THAT THE FIRE STARTED ON TOP OF THE ENGINE AND WAS PROBABLY DUE TO AN ELECTRICAL FAILURE. HE ALSO STATED THERE WAS NO SIGN OF MALICIOUS ACTIVITY. THE ADJUSTER WILL NOT COME OUT UNTIL MONDAY, BUT THE FIREMAN INDICATED THAT IT WOULD MOST LIKELY BE TOTALLED.*AK