WE WERE DRIVING (ONE MILE FROM HOME) WHEN IT SOUNDED LIKE WE HAD A FLAT TIRE. I PULLED OVER AND CHECKED. TIRES WERE FINE. HEARD THUMPING AGAIN. TURNED CAR AROUND BECAUSE OF 87 YEAR OLD FATHER IN VEHICLE. SMOKE CAME THROUGH THE VENTS. I PULLED INTO THE DRIVEWAY. SMOKE CAME OUT FROM UNDER HOOD. HUSBAND WAS DOING YARD WORK. MY SON ADAM YELLED THAT THERE WERE FLAMES. MY HUSBAND RAN TO THE GARAGE AND GOT A FIRE EXTINGUISHER. PUT FIRE OUT. HAD TO CUT TWO WIRES TO STOP THE SMOKING AND SIZZLING. CONTACTED STATE FARM. A FIRE INVESTIGATOR SAID HE BELIEVES THAT THE WAY THE WIRES WERE ROUTED ONTO THE FIRE WALL, RUBBED AGAINST A SCREW THAT WAS STICKING OUT OF THE FIRE WALL AND OVER TIME WORE THE WIRE, CAUSING A FIRE.*AK