I WAS STOPPED AT A STOP LIGHT ON MY WAY TO WORK AROUND 8AM ON A VERY CROWDED CITY STREET. AS THE LIGHT TURNED GREEN, I SLOWLY PRESSED ON THE GAS TO MOVE FORWARD AND THE CAR TOOK OFF AT TOP SPEED. I HIT THE BRAKE BUT THE CAR DID NOT RESPOND - IT DID NOT SLOW DOWN OR STOP, NOR DID ANY ALARM, EITHER VISUAL OR AUDITORY, GO OFF INSIDE THE CAR. TO HIT THE CAR IN FRONT OF ME AND THEN HAD TO SWERVE TO AVOID HITTING DOZENS OF CARS IN MY PATH. I GRAZED PAST A LAMP POST, ANOTHER CAR AND FINALLY CRASHED INTO A TREE.