WHILE DRIVING ON A HIGHWAY AT 65 MILES PER HOUR, I ATTEMPTED TO TURN THE CRUISE CONTROL OFF. IT DID NOT GO OFF. THEN I APPLIED THE BRAKES AND THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR WITH NO TENSION. THERE WAS NO BRAKING ACTION AT ALL. I DROVE ALONG SOME GRASSY AREAS ON THE SIDE OF THE HIGHWAY TO SLOW THE CAR, TURNED OFF THE IGNITION BECAUSE THE CAR WAS NO DECELERATING, AND HIT A TREE AT ABOUT 50 MPH. THE AIRBAGS DID NOT GO OFF. THE CAR WAS TOTALLED. THE CAR WAS SOLD TO A JUNK YARD BECAUSE THE REPAIR COSTS WERE TOO HIGH AND BECAUSE THE REPAIR FACILITY SAID THEY COULD NOT DETERMINE WHY THE CRUISE CONTROL AND BRAKES FAILED.