THE FOLLOWING DESCRIPTION IS FROM A NARRATIVE WRITTEN WITHIN 3 HOURS AFTER THE ACCIDENT. AROUND 5:30PM ON 12/10/2008 I WAS DRIVING HOME AROUND 2-3 MILES PER HOUR DUE TO TRAFFIC CONGESTION. THE SKY WAS DARK AND IT WAS LIGHTLY RAINING. THE TEMPERATURE WAS AROUND 60-65 DEGREES FAHRENHEIT, SO ICE WAS NOT PRESENT ON THE ROAD. THE LARGE SEMI TRUCK DIRECTLY AHEAD OF ME SLOWED DOWN TO A STOP, SO I ATTEMPTED TO BRAKE. MY BRAKES DID NOT SEEM TO HAVE AN EFFECT, SO I PUSHED ON THE BRAKES HARDER. THE BRAKES STILL HAD NO EFFECT. I IMMEDIATELY SHIFTED THE CAR INTO THE 'PARK' GEAR AND APPLIED THE EMERGENCY BRAKE. NEITHER THE SHIFTING THE GEARS NOR THE EMERGENCY BRAKE HAD ANY EFFECT ON THE CAR'S MOTION, MY CAR KEPT MOVING FORWARD. I EVENTUALLY STOPPED WHEN I SMASHED INTO THE BACK OF THE TRUCK, WHICH CAUSED ABOUT $5K OF FRONT END DAMAGE FOR MY CAR AND NO APPARENT DAMAGE TO THE TRUCK. THE TIME BETWEEN WHEN I NOTICED THE CAR WAS NOT STOPPING TO WHEN MY CAR HIT THE TRUCK WAS AROUND 2-3 SECONDS. AFTER THINKING ABOUT THESE EVENTS AFTERWARD, I DIDN'T REMEMBER HEARING THE TRANSMISSION GRIND DUE TO THE FACT THE CAR WAS IN THE 'PARK', BUT CONTINUED TO MOVE FORWARD. AFTER THE COLLISION, THE TRUCK AHEAD OF ME LEFT AS IF NOTHING HAD HAPPENED. MY CAR STAYED STATIONARY NOW THAT ITS MOMENTUM WAS LOST. I SHIFTED THE CAR BACK INTO 'DRIVE' AND SLOWLY DROVE HOME (AROUND 20-25 MPH). THE BRAKES WORKED LIKE NORMAL AND I DIDN'T HEAR ANY NOISE WHEN I APPLIED THE BRAKES. I TOOK THE CAR INTO THE DEALERSHIP ON 01/1