WHEN I WAS DRIVING ON THE PAVED ROAD ABOUT 15 MILES PER HOUR I LET OFF THE ACCELERATOR WHILE ENGAGING A SLIGHT CURVE IN THE ROAD AND THE CAR ALL OF A SUDDEN SPED UP OUT OF CONTROL. THE BRAKES HAD NO EFFECT ON STOPPING THE CAR. SO I STEERED AWAY FROM TRAFFIC AHEAD AND WENT INTO AN OPEN FIELD. THE CAR GOT UP TO AROUND 50 MPH, AND 60 YARDS OUT I HIT A 10 FOOT WIDE TRENCH BY 2 FOOT DEEP. THE FRONT END HIT THE OTHER SIDE AND THE AIRBAG WENT OFF. THE BRAKES FINALLY STOPPED THE CAR ABOUT 30 YARDS FROM THE TRENCH. THE DECORATIVE FRONT END AND THE BACK END WAS TORE OFF ALONG WITH MISCELLANEOUS BRACKETS. THE RADIATOR WAS PUSHED UP INTO THE HOOD WITH NO LEAKS.