There are some flats on the DLS which don't have the uprights. But if you go into the properties they will appear on set up of product. Will try and locate and let you know.
The cars from Jointed Rail that "amrail2000" referred to HAVE stakes (if that is what you called uprights), but you have to open properties (see pic) and tick the alternative that they will be raised, they are down (unvisible) by default.