CAR WAS PARKED ON A DRIVEWAY, AND, WHEN PUT IN REVERSE, THE CAR ACCELERATED AT HIGH SPEED FOR ROUGHLY 60 FEET UNTIL IT RAN INTO A HILL. THEN, WHEN PUT IN DRIVE, CAR ACCELERATED AT HIGH SPEED FOR ROUGHLY 90 FEET AND RAN THROUGH HEAVY VEGETATION AND THEN INTO AND PARTIALLY THROUGH A GARAGE WALL. BRAKES WERE APPLIED DURING THE ENTIRE INCIDENT WITH NO EFFECT. CAUSES OF FAILURE ARE UNKNOWN. COST TO REPAIR CAR IS ABOUT $9000. COST TO REPAIR GARAGE, LANDSCAPING, AND CONTENTS ARE NOT YET KNOW.