May I add my suggestion of a former USSR style map with brutalist/Soviet style architecture, either based towards a small or medium size town. Features could include... - A built up town area with shops and stuff - The familiar boxy shaped apartment buildings - Abandoned tramway that runs across the map from the town to the suburbs - Plenty of trees and wild growth between buildings outside of town - A set of garages adjacent to the abandoned tramway at the suburban end (for BAZ experiment related stuff) For a vehicle to go with the map my suggestion is for a BAZ (Beam Avtomobilny Zavod) vans/light trucks that can be customised as military, commercial, ambulance, fire, or as a small bus (marshrutka bus). Another proposed variant is as a heavily customisable "guinea pig" that you would likely see being done on YouTube by people like Garage54 and Kreosan, one variant of which would include rail wheels to run up and down the abandoned tramway from the garages in the suburban area in to the town (as actually attempted by Kreosan albeit on rims and not rail wheels).
This would actually be pretty cool. This game is missing a Asian map. But, I doubt that they will add this map anytime soon, so here is a mod: https://www.beamng.com/threads/russian-province-town-2-5-fix-23-0-ver.67622/