DRIVING ON I10 WEST BOUND FROM PHOENIX TO CALIFORNIA WHEN THERE WAS A LOUD EXPLOSION UNDER THE FEET ON THE DRIVERS SIDE. PULLED OVER TO SEE WHAT IT WAS AND SAW FLAMES. TRIED TO PUT OUT WITH A FIRE EXTINGUISHER WITHOUT SUCCESS. TRIED A SECOND EXTINGUISHER WITH THE SAME RESULTS. GOT 90% OF MY STUFF OUT OF THE VEHICLE. IT WAS LIFTED, WITH SKIP PLATES, WINCH. TOTAL LOSS. NO WARNING LIGHTS, SOUNDS OR ANY INDICATION THAT SOMETHING WAS WRONG. *TT