TL* THE CONTACT OWNED A 2018 MERCEDES-BENZ GLC300. WHILE DRIVING 55 MPH, THE REAR DRIVER'S SIDE TIRE WAS PUNCTURED. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH 18 INCH RUN FLAT TIRES. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD. AFTER WAITING APPROXIMATELY 70 MINUTES ON THE SIDE OF THE ROAD, THE TIRE BURST INTO FLAMES. THE CONTACT WAS UNABLE TO PROVIDE THE TIRE MANUFACTURER, TIRE LINE, COMPLETE TIRE SIZE, OR DOT NUMBER. THE CONTACT STATED THAT THE FIRE ORIGINATED IN THE WHEEL WELL OF THE VEHICLE AND WAS NOT NECESSARILY CAUSED BY THE TIRE PUNCTURE. THE FIRE DEPARTMENT WAS CONTACTED AND WAS ABLE TO EXTINGUISH THE FIRE. A FIRE REPORT AND A POLICE REPORT WERE FILED. THE VEHICLE WAS DESTROYED AND TOWED FROM THE SCENE. THERE WERE NO INJURIES SUSTAINED. THE DEALER AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,110.