A vehicular door assembly includes a door and at least one hinge structure. Each of the at least one hinge structure includes a knuckle and a bushing. The knuckle extends away from the door. The door and the knuckle of each of the at least one hinge structure are integrally formed as a unitary structure. The knuckle of each of the at least one hinge structure includes an upper surface and a lower surface, and defines a bore extending through the knuckle and opening onto each of the upper surface and the lower surface. The bushing defines a hinge aperture and a hinge axis. At least a substantial portion of the bushing is positioned within the bore defined by a respective one of the knuckles. Each of the at least one hinge structure is configured for coupling with a frame of a vehicle. Vehicles are also provided.