I'M DROVE ON HWY101S IN SF FOLLOW THE HWY SPEED. WHEN THE CAR AHEAD SLOWDOWN AND STOPPED AND I DID TOO BUT THE CAR BEHIND WON'T STOP AND HIT ME FROM THE HWY SPEED THEN PUSH ME HIT THE FRONT CAR AHEAD AND ANOTHER CAR HIT THE CAR BEHIND ME PUSH HER HIT ME AGAIN AND ANOTHER CAR ALL 5 INVOLVED THIS INCIDENT. I'M THE SECOND ONE. MY CAR WAS DAMAGED THE TRUNK POP UP BEND V SHAPE THE FRONT LID AND BUMPER BEND BUT THEY HAVE NO ANY POSITIONS OF AIRBAG POP UP COME OUT TO SAVE ME AND MY PASSENGER FRONT AND BACK SEAT......UPDATED 03-11-15 *BF *TR UPDATED 9/20/2017*CN