VEHICLE WAS PARKED ON SHOULDER OF ROAD, ENGINE RUNNING, WHILST ADJUSTING THE MOBILE GPS (HENCE THE REASON FOR STOPPING). AT FIRST SMOKE WAS COMING UP AROUND/THROUGH CENTER CONSOLE (BETWEEN DRIVER'S SEAT AND PASSENGER FRONT SEAT) AND THEN FLAMES. THE INTERIOR OF PASSENGER COMPARTMENT WAS TOTALLY BURNED OUT IN SPITE OF PROMPT RESPONSE BY EMERGENCY CREW. STATE FARM INSURANCE HAS NATURALLY BEEN NOTIFIED ALTHOUGH I HARDLY SEE WHY STATE FARM SHOULD PAY AND NOT TOYOTA. SURELY THERE MUST HAVE BEEN SOMETHING WRONG WITH ELECTRICAL WIRING.