I really did the minimal on the interior of the car. I did modify the Bachmann interior so it was moved down to one end and lined it up with the section windows. I just created a wall to block the ability to see through the car. I painted the interior with some nondescript tannish color from a spray can I bought at a big box store. This is very bear bones, I do not plan to light the car. I may add a few figures.
Based on the location of the layout in the world, this car would be travailing it at night, so most people would be asleep.