ACCELERATING UP HILL TO POSTED 50MPH WHEN ACCELERATOR PEDAL PUNCHED TO THE FLOOR ON IT'S OWN. VEHICLE REACHED 85MPH AND SLOWED TO APPROX 55MPH WHEN DOWNSHIFTED TO 1ST WHILE SIMULTANEOUSLY PRESSING BRAKE PEDAL AND PULLING UP ON EMERGENCY BRAKE. ACCELERATOR PEDAL WOULDN'T COME UP DESPITE ATTEMPTS WITH FOOT. ULTIMATELY CRASHED, VEHICLE TOTALED, PROPERTY DAMAGE TO A HOUSE AND NEIGHBOR'S YARD, PERSONAL INJURIES SUSTAINED BY DRIVER ONLY; NO PASSENGERS. *TR