WE WERE DRIVING SOUTH ON I-95 AT 4 O'CLOCK IN THE MORNING HEADING TO VACATION IN MYRTLE BEACH. 2 HOURS INTO OUR DRIVE AT 6 AM, DRIVER STATED THAT SOMETHING WAS GOING ON WITH THE CAR. FELT LIKE HE WAS LOSING CONTROL OF THE CAR . I LOOKED OVER AND SAW A GAUGE THAT READ AWD BRAKE OVERRIDE CONTACT DEALERSHIP. IT STARTED TO SLOW DOWN EVEN MORE SO HE PULLED OFF TO THE SIDE OF THE ROAD AND WHEN HE DID THE CAR SHOOK AND VIBRATED AND MADE A LOUD NOISE. WHEN THE CAR CAME TO A STOP SMOKE WITH SEEN COMING FROM UNDERNEATH THE HOOD. AND THEN A SECOND LATER A FLAME SHOT OUT FROM UNDERNEATH THE HOOD. IT ALL HAPPENED SO QUICKLY. I TOLD EVERYBODY TO GET OUT OF THE CAR THAT THE CAR WAS ON FIRE. I GRABBED MY PHONE AND MY PURSE AND JUMPED OUT AND CALLED 911. FIRE ENGINE SHOWED UP AND PUT OUT THE FIRE. THE CAR WAS A TOTAL LOSS. THE FIRE WAS SUPER FAST.