EXPERIENCED UNEXPECTED ACCELERATION WHEN TAKING MY FOOT OFF THE BREAK WHEN BACKING OUT OF A PARKING SPOT; SUCCESSFULLY STOPPED THE CAR WITH THE BREAK HOWEVER WHEN I TOOK MY FOOT OFF THE BREAK AGAIN TO GO FORWARD, THE CAR ACCELERATED DRIVING OVER A SMALL ISLAND AND HIT A PARKED CAR WHICH WAS PUSHED INTO ANOTHER PARK CAR. AIRBAGS DID NOT DEPLOY. NO INJURIES WERE SUSTAINED. RECENTLY AN OUTSIDE AGENCY WAS HIRED BY SUBARU AND AN ENGINEER FROM THIS AGENCY COMPLETED AN INSPECTION. AM WAITING TO GET THE RESULTS OF THIS REPORT.