DIXIE DONELSON HAD ONLY PURCHASED HER FORD EXPEDITION THE MONTH PRIOR (EARLY JUNE), AND WAS JUST UNDERWAY FOR A TRIP TO VISIT HER DAUGHTER IN COLORADO. THE ORIGINAL POLICE REPORT DOCUMENTS HER LOSING CONTROL OF HER VEHICLE WITHIN THE FIRST 40 MINUTES OF HER TRIP. FURTHER OBSERVATIONS OF THE CRASH SITE HAVE REVEALED TREAD REMNANTS OF NEW FIRESTONE SUV TIRES. HOWEVER, THE EXPEDITION CAUGHT FIRE AND ALL REMAINING TIRES BURNED TO THE EXTENT OF NOT BEING IDENTIFIABLE. DIXIE HAD TOLD HER DUAGHTER SHE HAD NEW FIRESTONE TIRES, BUT WE HAVE HAD LITTLE SUCCESS IN DETERMINING THE ACTUAL TIRE MODEL.( DOT NUMBER: TIRE SIZE: (UNKNOWN) )