ELECTRICAL FIRE IN ENGINE COMPARTMENT, WIRING HARNESS MELTED AND CAUGHT FIRE, BATTERY MELTED. DRIVING ABOUT 35MPH, STARTED TO SMELL SMOKE AND THE VEHICLE ENGINE CUT OUT. ROLLED TO THE SIDE OF THE ROAD, CALLED FOR HELP AND NOTICED THE SMOKE GETTING WORSE AND THEN SEEN THE FLAMES. EXTINGUISHED THE FIRE WITH THE HELP OF BYSTANDERS AND RESIDENTS LIVING NEAR BY