STOPPED IN LINE AT FAST FOOD DRIVE-UP. PLACED VEHICLE IN PARK. PLACED VEHICLE IN DRIVE TO MOVE FORWARD AND THE VEHICLE QUICKLY ACCELERATED. STEPPED ON BRAKE PEDAL AND THE VEHICLE WOULD NOT STOP. VEHICLE STOPPED AFTER SLAMMING INTO VEHICLE IN FRONT. WILL BE GOING BY THE TOYOTA DEALERSHIP IN THE MORNING TO REPORT WHAT HAPPENED. *TR