CAR WAS PARKED OUTSIDE OUR APARTMENT BUILDING. IT WAS OFF AND HADN'T BEEN DRIVEN IN OVER 20HRS. AT 11AM A FIRE BROKE OUT IN THE REAR DRIVER SIDE SEAT. FIRE DEPARTMENT ARRIVED PUT OUT THE FIRE, SAID IT WAS NOT ARSON BUT RATHER ELECTRICAL ISSUE. THE CAR FRONT DASH WAS PARTIALLY MELTED, REAR SEAT BIG CHAR BLACK SEATING MATERIAL AND SHOWED EXPOSED WIRES.