A versatile door system for a vehicle having a frame with an opening. The door system includes a door assembly including a hingeable door and a slidable door. The hingeable door is hingeably coupled to the frame proximate the opening. The slidable door is slidably coupled to the hingeable door. A rail system includes a segmented upper rail having a first portion coupled to the frame and a second portion formed on an exterior side of the hingeable door. The slidable door includes a slider bearing configured to sequentially engage the first and second portions of the segmented upper rail along a path of travel of the slidable door. In a closed configuration, the hingeable door and the slidable door are securably disposed within the opening. The hingeable door and the slidable door are configured to collectively provide access to selectable portions of the opening.