A rear sliding window assembly suitable for use in a vehicle includes upper and lower track members and at least one fixed glass window panel. The track members are disposed at a surface of the fixed glass window panels and no portion of the track members is in contact with the opposite surface of the fixed glass window panels. A movable glass window panel is slidably disposed at the track members and movable at least partially along the track members relative to the fixed glass window panel or panels. The movable glass window panel is movable between opened and closed positions. A perimeter edge of the movable glass window panel may be received by a glide member, and the glide member may be disposed in the upper or lower track member to facilitate sliding of the movable glass window panel at least partially along the upper or lower track member.