im using a 48' gooseneck style to haul a old vette and 39 pick-up neither have wheelie bars and the forward veh sticks out about 12'' into the side door opening,which is 48" wide, thats allowing for comfortable tie-down area to work and approx 24'' behind the rear veh. this still allows for a fuel drum, tools, jugs etc. forward of the side door area, hope this helps you