WHILE DRIVING 65 MPH VEHICLE SUDDENLY ACCELERATED WITH DRIVER'S BOTH FEET ON THE BRAKE PEDAL. VEHICLE CONTINUED TO ACCELERATE, HIT A GUARD RAIL, AND ROLLED INTO AN EMBANKMENT. UPON IMPACT, BOTH FRONTAL AIRBAGS DID NOT DEPLOY. AN AMBULANCE WAS CALLED BUT DRIVER REFUSED TO GO WITH THE ANBULANCE. VEHICLE WAS TOTALED BY THE INSURANCE COMPANY. *AK