VEHICLE BEING DRIVEN AT NORMAL HIGHWAY SPEED ON CRUISE CONTROL. CRUISE CONTROL KICKED OFF. THEN POWER STEERING AND BRAKES WENT OUT AND A FIRE STARTED IN THE ENGINE COMPARTMENT IN FRONT OF DRIVER SEAT. VEHICLE COASTED TO THE SIDE OF THE ROAD. SMOKE BEGAN TO FILL THE CAB. AT SIDE OF ROAD VEHICLE WAS EVACUATED VEHICLE BURNED TO THE GROUND. PHOTOS AVAILABLE FROM THE TIME THEY GOT TO THE SIDE OF THE ROAD. *KB