Abstract: A vehicle body with a cavity therein. The cavity is optionally closed or opened by a door arrangement with one or more door leaves. The door leaves are connected to a wall of the cavity via multiple-joint hinges. A pivot axis of the door leaves is situated outside the cavity, and the multiple-joint hinges are arranged completely in the cavity without taking up installation space outside the inner volume of the cavity when the door arrangement is in the closed state. This design requires little installation space and allows a great freedom of movement of the door leaves.

Abstract: A connector for a structurally integrated line system of a vehicle, having a first end portion, a second end portion and a connecting piece extending between the first end portion and the second end portion, wherein the first end portion has at least one contact face for arrangement on a structurally integrated line, wherein at least one of the at least one contact face has a cutout which is surrounded by a closed border, wherein the second end portion has a flange connection for connection to a pipe.