I WAS DRIVING IN STOP AND GO TRAFFIC APPROXIMATELY 30 - 35 MILES PER HOUR AND I HAD TO SLAM ON THE BRAKES OF MY 2014 HYUNDAI ELANTRA TO AVOID COLLISION WITH A CAR THAT WAS STOPPED IN TRAFFIC FOR NO APPARENT REASON APPROXIMATELY 8-9 CAR LENGTHS IN FRONT OF ME AND THE BRAKES FAILED. THE BRAKE FAILURE CAUSED ME HAVE AN ACCIDENT AS I HAD NO OTHER CHOICE AND NO OTHER WAY TO STOP THE CAR EXCEPT TO REAR END THE CAR IN FRONT OF ME. THAT'S THE ONLY WAY THE CAR STOPPED. INSTEAD OF STOPPING WHEN I PUT MY FOOT ON THE BRAKES, I HAD NO BRAKES AT ALL AND THE CAR SKIDDED OVER THE LENGTH OF 8-9 CARS AND ONLY STOPPED WHEN I HIT THE REAR END OF THE CAR IN FRONT OF ME. WHEN I INITIALLY PUT MY FOOT ON THE BRAKES I FELT A "THUMP" THROUGH THE BRAKE PADDLE AND THEN I HAD NO BRAKES. THERE HAD BEEN RAIN EARLIER IN THE DAY, BUT AT THE TIME OF THE ACCIDENT IT WAS NOT RAINING. THERE WAS SLIGHT REAR BUMPER TO THE CAR THAT I REAR ENDED, BUT WITH THE IMPACT OF THE ACCIDENT MY CAR IS BASICALLY TOTALLED - FRONT BUMPER AND SIDE LIGHTS WERE DAMAGED AND FELL OFF OF THE CAR, MY ENGINE WAS PUSHED DOWN, ONE OF THE MOTOR MOUNT BOLTS WAS TOTALLY BROKEN OFF, THE HOOD AND THE RADIATOR WERE SMASHED IN, VALVES WERE DAMAGED, MANIFOLD WAS CRACKED, AC AND HEATER DAMAGED AND I DO NOT HAVE ANY BRAKES AS CAN BE VERIFIED BY MY MECHANIC. FOR THE SPEED THAT I WAS GOING IN STOP AND GO TRAFFIC I DON'T SEE HOW I COULD HAVE HAD THIS MUCH DAMAGE. IT'S UNBELIEVABLE. ALL IN ALL I AM LUCKY TO BE ALIVE AND UNINJURED. I'M AFRAID TO DRIVE T