A vehicle seat system (1, 1') comprising: a vehicle seat (10, 10') comprising a seat base (14, 14'), a backrest (12, 12'), a seat base track arrangement, a backrest track arrangement comprising a backrest fixed track (32, 32') and a backrest moveable track (30, 30') that is moveable along the backrest fixed track (32, 32'), a link arm (16, 16'), a seat base pivot connection between said link arm (16, 16') and said seat base (14, 14') and a link arm and backrest pivot connection (28, 28'), said seat base track arrangement comprising a seat base fixed track (52, 52') and a seat base movable track (54, 54') that is moveable along the seat base fixed track (52, 52'), said seat base fixed track (52, 52') being connected to a vehicle seat support and said seat base movable track (54, 54') being connected to said seat base (14, 14'), said backrest fixed track (32, 32') being connected to a vehicle backrest support (22, 22'); a locking device (36, 36') connected to said vehicle seat (10, 10,); a release/lock mechanism connected to said locking device (36, 36') for releasing and locking said locking device (36, 36'), characterized in that, the link arm and backrest pivot connection (28, 28') is arranged between said link arm (16, 16') and said backrest (12, 12') and said backrest movable track (30, 30'); the backrest (12, 12') and the seat base (14, 14') are supported on a support frame (20, 20'), and the locking device (36, 36') is connected to a locking device support (38, 38') via a locking device support connection (40, 40'), wherein the locking device support (38, 38') is connected to the support frame (20, 20'). a vehicle seat (10, 10') comprising a seat base (14, 14'), a backrest (12, 12'), a seat base track arrangement, a backrest track arrangement comprising a backrest fixed track (32, 32') and a backrest moveable track (30, 30') that is moveable along the backrest fixed track (32, 32'), a link arm (16, 16'), a seat base pivot connection between said link arm (16, 16') and said seat base (14, 14') and a link arm and backrest pivot connection (28, 28'), said seat base track arrangement comprising a seat base fixed track (52, 52') and a seat base movable track (54, 54') that is moveable along the seat base fixed track (52, 52'), said seat base fixed track (52, 52') being connected to a vehicle seat support and said seat base movable track (54, 54') being connected to said seat base (14, 14'), said backrest fixed track (32, 32') being connected to a vehicle backrest support (22, 22'); a locking device (36, 36') connected to said vehicle seat (10, 10,); a release/lock mechanism connected to said locking device (36, 36') for releasing and locking said locking device (36, 36'), characterized in that, the link arm and backrest pivot connection (28, 28') is arranged between said link arm (16, 16') and said backrest (12, 12') and said backrest movable track (30, 30'); the backrest (12, 12') and the seat base (14, 14') are supported on a support frame (20, 20'), and the locking device (36, 36') is connected to a locking device support (38, 38') via a locking device support connection (40, 40'), wherein the locking device support (38, 38') is connected to the support frame (20, 20').