From the industry journal I linked in another comment – it’s literally just an off-the-shelf Mireo Plus B. That’s it. The only thing Tesla about it is that it’s serving a spur line connecting Tesla’s factory to the existing Berlin light rail network, and was presumably financed by them for the PR benefit of not having the workers at an electric car factory arrive by diesel train.
I had quite a bit of fun with it for a few weekends with my friends, but ultimately the lack of a system for mechanical progression left it feeling a bit shallow (ha!). As a primarily PvE game with light PvP it’s in a weird place where it doesn’t have quite enough RPG-like elements to hold my interest on the PvE side, or enough player-on-player combat to make it a gripping contest of skill.
It’s still a fun game to hop into from time to time, but it’s never been appointment gaming for me