AS I WAS PULLING INTO MY PARKING SPACE AT WORK THE CAR SUDDENLY ACCELERATED AS I WAS BRAKING. THE CAR WOULD NOT STOP NO MATTER HOW HARD I PRESSED ON THE BRAKE PEDAL. THE ACCELERATION CAUSED ME TO SLAM INTO THE WALL OF MY OFFICE BUILDING AND BOUNCED THE CAR BACK 3-4 FEET. AT THE TIME OF THE INCIDENT I WAS IN TOTAL SHOCK AND HAD HIT MY LEG AGAINST THE PANEL DURING THE CRASH. AS THE DAY PROGRESSED I STARTED FEELING MORE AND MORE PAIN AND DISCOMFORT THROUGHOUT MY NECK, SHOULDERS AND CHEST AREA. THIS WAS THE FIRST TIME I HAVE EVER FELT A SUDDEN ACCELERATION OF THE CAR WITHOUT PRESSING ON THE GAS PEDAL. NOW THAT THIS HAS HAPPENED I HAVE REALIZED OCCASIONALLY WHEN I PRESS ON THE BRAKE PEDAL THE CAR DOESN'T SLOW DOWN IMMEDIATELY. WHETHER THIS HAS ANYTHING TO DO WITH THE INCIDENT IS BEYOND ME. THE CAR WAS LATER TOWED TO LONGO LEXUS IN EL MONTE, CA FOR I NO LONGER FEEL SAFE DRIVING IT. NOTHING HAS BEEN DONE TO CORRECT THIS FAILURE. *TR