VEHICLE EXPERIENCED SUDDEN ACCELERATION, CAUSING A THREE-CAR CRASH, AT SPEEDS EXCEEDING 80-85 MPH. WHILE ATTEMPING TO SHIFT TO PARK, TO SHUT OFF VEHICLE, IT CAUGHT IN REVERSE AND CONTINUED TO ACCELERATE BACKWARDS, CRASHING INTO THREE MORE VEHICLES. BOTH AIRBAG'S EXPERIENCED NO DEPLOYMENT. VEHICLE WAS TOTALLED. PLEASE PROVIDE ANY FURTHER INFORMATION. *AK *YC