WHILE DRIVING DOWN HIGHWAY, NOTICED SMOKE COMING FROM DASH AREA. BRAKES WERE APPLIED BUT FAILED. KEPT TRYING BRAKES AND FINALLY MANAGED TO PULL TO SIDE OF ROAD. PASSENGERS LEFT VEHICLE, LOOKED UNDER VEHICLE AND SAW FLAMES. THEY GOT AWAY FROM THE CAR AND WITHIN 5 OR 10 MINUTES, WHOLE CAR WAS IN FLAMES. CAUSE OF FIRE IS UNDER INVESTIGATION.*AK