I WAS DRIVING ON THE HIGH WAY WITH CRUISE CONTROL SET TO 65 MPH. WHEN I TAPPED ON THE BRAKE TO RESET THE CRUISE CONTROL, NOT ONLY THAT THE CAR DID NOT SLOW DOWN, IT ACTUALLY PICKED UP THE SPEED AND STARTED TURNING AROUND ALL OVER THE HIGH WAY IN A BIG 'S' SHAPE. NEITHER THE BRAKE NOR THE STEERING WHEEL WAS FUNCTIONING. THE CAR WAS TOTALLY OUT OF MY CONTROL. THE CAR EVENTUALLY STOPPED AFTER HITTING THE SIDE RAIL ON THE ROAD. THE WEATHER WAS GOOD AND THE ROAD WAS CLEAR. AS AN ENGINEER, I SUSPECT THE ELECTRONIC SENSOR(S) OF THE CAR WAS THE CAUSE OF THE MALFUNCTIONING. *TR