I WAS TURNING INTO MY PARKING SPACE SLOWLY WITH THE BRAKE SLIGHTLY DEPRESSED. AS I PRESSED FURTHER ON THE BRAKE THE CAR ACCELERATED SUDDENLY. I PRESSED DOWN HARD ON THE BRAKES AND THE CAR DIDN'T SLOW DOWN AND SMACKED THE RETAINING WALL. THE DASHBOARD LIT UP WITH THE PARKING BRAKE (DID NOT PRESS) AND THE CAR WITH THE LIGHTNING BOLTS. I DON'T KNOW WHAT JUST HAPPENED.