A motor vehicle door (10) consists of structural parts for providing the rigidness of the vehicle door and comprising at least one support or carrier element and at least one lining element, in which the support or carrier element contains at least one hinge unit and/or one closing element or is or can be connected to said unit or element and further consists of function components for providing vehicle door functions and comprising movable parts, like a window panel with a regulator. At least one of the structural parts serves as a carrier or support of at least one of the function components or parts thereof. In order to reduce the number of individual components, it is proposed that at least one of the function component carrying or supporting structural parts forms a completely shaped composite or sandwich part having a plastic based matrix (15A) and further having several of the function components or parts thereof included to serve as rigidness providing bodies, said bodies are molded in into said plastic based matrix (15A) and connected to each other by virtue of said plastic based matrix.