Game low-poly 3d-model of cargo railroad car ( hopper )
High / mid poly modeling for baking does by Alexander Ryzhkov.
The rest of the work did by me.
Polycount:
36 378 tris
44 493 verts (in game engine)
Textures:
4096x4096 (hopper)
2048x2048 (bogie)
Game ready 3d-model: https://www.cgtrader.com/3d-models/vehicle/train/hopper-railroad-car
High Poly: https://www.cgtrader.com/3d-models/vehicle/train/hopper-car-high-poly