CONSUMER TOOK GEAR SHIFT LEVER OUT OF THE "PARK" GEAR AND ENGAGED DRIVE GEAR, VEHICLE ACCELERATED SUDDENLY, HITTING TWO PARKED CARS, ONE MOVING TRUCK, AND WAS STOPPED BY CRASHING INTO A GARAGE. THERE WERE NO INJURIES TO REPORT FROM THIS INCIDENT. NO DETERMINATION HAS BEEN MADE AS TO THE CAUSE OF THIS PROBLEM. *AK