OUR 2000 FORD WINDSTAR WAS REAR-ENDED ON I40 08/10/2000. TRAFFIC SLOWED SUDDENLY, CARS WERE FOLLOWING TOO CLOSELY, STRUCK THE LEFT SIDE OF THE REAR OF OUR VAN AT SPEED. THE FORCE OF THE COLLISION CAUSED THE SEAT BACK TO GIVE WAY, PINNING THE LEGS OF MY 4 YEAR OLD SON BETWEEN THE SEAT AND HIS CAR SEAT. HE WAS UNINJURED, HOWEVER, I SUFFERED SEVERE SOFT TISSUE INJURIES WHEN THE SEAT BACK COLLAPSED. THIS COULD HAVE BEEN A VERY SERIOUS SITUATION HAD MY HEAD STRUCK MY SON.*AK