2006 DODGE RAM SRT-10 Engine Problems

ON 12/11/18 MY WIFE PICKED-UP THE KIDS FROM THEIR SCHOOL. AT ABOUT 14:25 MY WIFE HAD ARRIVED HOME AND HAD NOTICED THERE WAS A BURNT RUBBER (ACRID) SMELL SHE THOUGHT CAME FROM THE LEFT FRONT OF THE CAR. THIS SMELL STARTED WHILE DRIVING. THE ROUND-TRIP TO SCHOOL IS ABOUT 20 MILES AND TAKES ABOUT 20 MINUTES EACH WAY. MY WIFE SAID SHE TRIED TO IDENTIFY WHERE THE SMELL WAS COMING FROM AFTER CLEARING THE CAR BUT COULD NOT PINPOINT IT. NO SMOKE OF ANY KIND WAS SEEN. SHE WENT BACK INSIDE AFTER FAILING TO LOCATE THE SOURCE OF THE SMELL. THE NEIGHBOR CALLED TO SAY HER CAR WAS ON FIRE SHORTLY THEREAFTER. THE VEHICLE WAS STATIONARY AND HAD BEEN STANDING FOR AROUND 10 MINUTES WHEN THE FIRE WAS REPORTED BY THE NEIGHBOR, AT WHICH TIME BIG FLAMES WERE VISIBLE AND COMING FROM THE ENGINE COMPARTMENT. FD ARRIVED ON THE SCENE...