The parlor car is used by company officers, local business owners and wealthy travelers. It is still in the planning phase as I have not decided to do a full parlor car or a joint car with parlor and first class sections. Either way I will have to customize the existing coach walls.
I envision an interior and observation deck similar to these examples.
I have an AMS RTR unlettered coach as a starting point. The joint plan is depicted below.
If I go with the full length parlor car I will also add a first class passenger car with partitioned seating.