The roof (12) has a roof cap (16) comprising a set of ribs that are spaced apart from one another in a longitudinal direction, where each rib extends along a transverse direction. An impact energy absorbing protective device is connected to the roof cap, w...

The rack is composed of components (2, 3) with simple insertion connecting points (12). After the components have been positions in an assembly device, the cavities are sealed by soft seals (8, 10) and filled with low-viscosity polyurethane material which ...