I WAS DRIVING MY SIENNA ON A 2 LANE TOWN ROAD AND WITHOUT WARNING SMELLED SMOKE. AS I WAS PULLING OVER CARS IN THE ONCOMING LANE WERE HONKING AT ME AS THEY SAW THE FIRE UNDERNEATH WHERE THE ENGINE IS. WHEN I PULLED OVER SMOKE ENTERED INTO THE CAR. I STEPPED OUT, HEARD A POP, AND NOW THE ENTIRE FRONT OF THE CAR WAS FULL ON FIRE. THE FIRE DEPARTMENT ARRIVED ON SCENE QUICKLY AND EXTINGUISHED THE FIRE. I FILED AN INCIDENT REPORT WITH TOYOTA. I RECEIVED A CALL FROM A MAN SAYING HE WAS HIRED BY TOYOTA TO INVESTIGATE THE FIRE AND REPORT BACK TO THEM. TO DATE, I HAVE RECEIVED ZERO COMMUNICATION FROM ANYONE AT TOYOTA REGARDING THIS SERIOUS MATTER.