WHILE TRAVELING AT HIGHWAY SPEED WITH CRUISE CONTROL ENGAGED. SUDDENLY VEHICLE COMMENCED TO ACCELERATE AND SMOKE WAS COMING FROM UNDER HOOD, HOT PLASTIC FROM THE DASH WAS FALLING ON THE LEG OF THE DRIVER, ALSO, DRIVER'S SHOE AND SOCK CAUGHT ON FIRE; VEHICLE LEFT ROAD INTO A FIELD AND STRUCK A TREE. STATE PATROL ARRIVED TO ASSIST. PLEASE FEEL FREE TO PROVIDE ANY FURTHER DETAILS. *AK