DRIVER SIDE REAR QUARTER PANEL STARTED ON FIRE. THIS OCCURRED AFTER AN APPROXIMATELY 4 MILE DRIVE. I BELIEVE THE FIRE STARTED ON THE DRIVE. I PARKED THE VEHICLE IN A PARKING LOT WITH ONLY ONE OTHER VEHICLE. WHEN I WAS WALKING INTO THE STORE I SMELLED BURNING PLASTIC BUT DID NOT RELATE IT TO MY CAR BURNING. I WAS IN THE STORE ABOUT 5 MINUTES. WHEN I WALKED OUT I SAW THE FIRE. THERE WAS NO OUTSIDE INFLUENCE TO THE FIRE AND NOTHING INSIDE THE VEHICLE VEHICLE. THE ONLY THING IN THAT AREA OF THE VEHICLE IS WIRING.