DURING HEAD ON COLLISION AT A RELATIVELY LOW SPEED (30 MPH), THE CHILD SAFETY SEATS POOR FIT IN COMBINATION WITH THE PLASTIC SHELL FAILURE RESULTED IN MOVEMENT OF THE SEAT/FAILURE TO RESTRAIN PROPERLY, CHILDS HEAD COLLIDED WITH THE BACK OF THE SEAT IN FRONT, CHILD SUFFERED NECK INJURY THAT RENDERED HIM A QUADRIPLEGIC. *MJS