Goal was to make as similar wagon as this one from Roco company, which make locomotives, wagons etc for model railway.
This wagon was made in Epoche III and for "Deutsche Reichsbahn (DDR)".
Of course, some modifications and compensation was made, because of lack of some LEGO pieces in right color or they are too expensive, like curved slopes for the roof in metallic color.
Emmm, I'm sorry for the unclear pictures.
Wagon is without interior, because there is no room for anything detailed, except LEGO seats.
I try to make chassis frame as on the picture, but use the original LEGO wheels. The wheels are a little bit too far from each other what causes some friction on LEGO curved rails, but on bigger radius like ME Model tracks has, there is no problem at all.