There is only so much one can expect from the manufacturers, even those who produce scale models. In this case KISS and their RhB Centre Entrance coaches. Two colours for the interior, beige and brown. Hmmm, a bit drab.
No problem, add whatever will make the car look more like the real thing. Seats in the non-smoking section are upholstered in green, red in the smoking section. The arm rests are black, the seats have a chrome plated frame. Small table below the windows, a trash can below that.
Pictures to follow once I put the last luggage rack in place i.e. tomorrow morning in natural light.