WHILE DRIVING DOWN I-96 IN MICHIGAN AT MILE 62, I FELT AN EXPLOSION UNDER MY FEET. THERE WAS A LARGE CLOUD OF BLACK SMOKE FOLLOWED BY FLAMES UNDERNEATH AND OUT THE BACK OF THE VEHICLE. I PULLED TO THE SIDE OF THE ROAD, RAN TO SAFETY WHILE WATCHING THE VEHICLE BURN UNDERNEATH. THE AIR DRAFT FROM PASSING TRAFFIC EXTINGUISHED THE FIRE. QUALIFIED TECHNICIANS AT OUR LOCAL CHEVROLET DEALER HAVE TOLD US THERE IS A GOLF-BALL SIZE HOLE AND A SOFTBALL SIZE HOLE IN THE ENGINE IN ADDITION TO NUMEROUS ISSUES RESULTING FROM THE FIRE (MELTED FUEL AND BRAKE LINES, CHARRED AND BUBBLED PAINT AND MELTED PLASTIC PARTS, ETC.) ALTHOUGH THIS IS COVERED BY GM WARRANTY AND THEIR INVESTIGATION "TOTALED" THE CAR , CUSTOMER SERVICE HAS NOT OFFERED ASSISTANCE THAT WILL COVER REPLACEMENT OF THIS VEHICLE. *TR