My goal was to build a recognisable L-Gauge scale Tangara train (i.e., 6-stud car width, ~34-stud car length), with double-deck seating, openable doors and support for Powered UP remote control.
My primary references were from the media above, but I also inspired by Cyborg_Of_ice's and Stuartn's Tangara T-Set LEGO models.
If you have any feedback or questions related to this article, please reply to my post on Mastodon. This article is part of the LEGO Tangara project in the LEGO set.