THE DRIVER IN FRONT OF ME SUDDENLY STOPPED AND WHEN I APPLIED HARD PRESSURE ON THE BRAKES THEY DID NOT REACT QUICKLY, CAUSING THE CAR TO CONTINUE ROLLING AND HIT THE CAR IN FRONT OF ME. THIS IS THE SECOND TIME IT HAPPENED - THE FIRST TIME BEING IN EARLY SEPTEMBER. BOTH TIMES THE CAR WAS EITHER STATIONARY OR BARELY MOVING AND A HARD BRAKE DIDN'T RESPOND LIKE IT SHOULD. THIS IS THIRD NISSAN I HAVE HAD (07 SENTRA, 99 ALTIMA), AND I HAVE NEVER HAD THIS PROBLEM AND AM FAMILIAR WITH THE BRAKING SYSTEM. *TR