I BACKED OUT OF A PARKING SPACE AT WORK, AND WHEN I BRAKED AND PRESSED THE DRIVE BUTTON, THE CAR DID NOT SHIFT. AFTER SEVERAL TRIES THE CAR WENT INTO DRIVE. I DROVE OUT OF THE PARKING LOT ONTO A SIDE STREET. HOWEVER, AFTER ACCELERATING UP TO THE 20 MPH LIMIT, THE CAR APPARENTLY JUMPED DOWN TO 2ND AND HAD TO BE SHIFTED BACK INTO DRIVE. AFTER A BLOCK OR TWO, I STOPPED AT AN INTERSECTION, WAITED FOR THE LIGHT TO CHANGE AND ACCELERATED AFTER TURNING LEFT ONTO A CITY STREET. AFTER ABOUT SIX BLOCKS I BRAKED, TURNED LEFT, THEN RIGHT IN TO A PARKING LOT. I CONTINUED ACROSS THE PARKING LOT AT ABOUT 10 MPH UNTIL I NEARED A PARKING SPACE. AS I BEGAN THE LEFT TURN INTO THE SPACE, I APPLIED THE BRAKE AND SLOWLY ENTERED THE SPACE. I CONTINUED TO TURN AT A SLOW SPEED WITH LIGHT BRAKE PRESSURE WHEN SUDDENLY THE CAR SURGED FORWARD AND CRASHED INTO THE FRONT OF A PARKED VEHICLE, DAMAGING THE FRONT OF BOTH VEHICLES.