2007 BMW X3 WITH JUST UNDER 80,000 MILES. THE DRIVER SIDE SEAT BOTTOM BURNED THROUGH THE UPHOLSTERY AND BURNED THE THIGH OF THE DRIVER WHILE THE SEAT HEATER WAS IN USE APPROXIMATELY FIVE MINUTES INTO THE DRIVE ON PAVED CITY STREETS. IT WAS IMMEDIATELY TURNED OFF BEFORE THE UPHOLSTERY ACTUALLY CAUGHT FIRE.