VEHICLE HAD BEEN DRIVING IT BUT IT WAS PARKED FOR ABOUT 25 MINUTES, WITH NOTHING RUNNING OR KEYS IN THE IGNITION. CAME OUT SIDE TO THE SMELL OF SMOKE AND THE ENGINE COMPARTMENT BUST INTO FLAMES. FIRE INVESTIGATOR SAID THAT THE FIRE WAS ELECTRICAL THAT STARTED ON THE PASSENGER SIDE OF THE ENGINE. TRUCK WAS A TOTAL LOSS AS FIRE SPREAD ALONG DRIVETRAIN TO GAS TANK. FIRE DEPARTMENT WAS ABLE TO KEEP GAS TANK FROM EXPLODING. *TR