I WAS PULLING MY HONDA CRV INTO A SHORT DRIVEWAY TO PARK IN FRONT OF A CLOSED GARAGE DOOR. MY SPEED WAS LESS THAN 5 MPH. AS I WAS IN THE DRIVEWAY WITHIN 5-6 FEET OF THE CLOSED GARAGE DOOR, THE ENGINE REVVED AND CAR SUDDENLY ACCELERATED. I COULD NO LONGER FEEL THE ACCELERATOR DIRECTLY UNDER MY FOOT AND APPLYING THE BRAKE DID NOTHING TO STOP THE CAR. ACCELERATION CONTINUED, CAR WENT THROUGH GARAGE DOOR AND CRASHED INTO CONCRETE WALL AT THE BACK OF THE GARAGE. NOT SURE WHAT SPEED THE CAR WAS TRAVELING WHEN CRASH OCCURRED. GIVEN THE SHORT DISTANCE, MAYBE 20-30 MPH. AIRBAGS DEPLOYED. NO ISSUE WITH FLOOR MATS OR OTHER OBJECTS NEAR THE ACCELERATOR.