I WAS DRIVING ON THE FREEWAY DURING EVENING RUSH HOUR, SO IT WAS STOP-AND-GO TRAFFIC. I ALWAYS LEAVE PLENTY OF ROOM BETWEEN MYSELF AND THE CAR IN FRONT OF ME. THE CAR AHEAD STOPPED SUDDENLY, AND I SLAMMED ON MY BRAKES WITH A CAR AND A HALF LENGTH DISTANCE BETWEEN MYSELF AND THE VEHICLE IN FRONT OF ME. I WAS GOING ABOUT 15 MILES PER HOUR AND MY CAR DID NOT STOP - I SLID STRAIGHT INTO THE CAR IN FRONT OF ME. IT WAS NOT ICY AND THERE WAS PLENTY OF ROOM TO STOP. THE BRAKES FAILED. WHEN I FIRST PURCHASED THE VEHICLE, I REMEMBER HITTING THE BRAKES AND SAYING TO MYSELF AND MY FRIEND AT THE TIME, "MAN, IT DOESN'T FEEL LIKE THIS THING WANTS TO STOP ALL OF THE WAY." WELL, IT DOESN'T STOP ALL OF THE WAY AND IT IS A MAJOR HAZARD.