An article attachment system for a vehicle includes an elongated rail
attached to the interior of the vehicle. The rail has a partially
enclosed space with at least one slide interface and a series of
projections. A bracket engages the rail for mounting at least one article
to the rail. A positioning device engages the bracket and has at least
one extension movable between an engaged position for securing the
article to the rail and a released position for moving the article
relative to the rail.