Abstract: A vehicle seat assembly is mounted for fore and aft adjustment on slides. A separate slideway extends parallel to the slides and a slide element is lockable at spaced positions along the slideway. The seat has a tilting squab and a lock is provided for locking the sides of the squab. The squab is connected by a pivotal link to the slide element so that, with the squab lock released, the seat is slid forward along its slide by swinging the squab forwardly and with the squab locked and the slide lock released, the seat as a whole can be slid forwardly on its slides.