NEVER BEEN FUCKING DONE BEFORE (technically never before because this bazinga train weighs down the train with on board batteries)
Christ, even the lettering on the side... younger me from the 90s would be baffled to find out how sick current me could get of cyberpunkerinos aesthetics.
It's just branding, because it's a shuttle service between a mainline stop in a nearby village and their Gigafactory outside Berlin.
The best part is that this train isn't made by Tesla, it's just them leasing battery trains from Siemens, and they don't even operate them:
Tesla plans to switch to operating battery-electric trains from the Mireo Smart family, manufactured by Siemens, replacing diesel trains currently transporting employees to their factory near Berlin.
[...]
The trains will be leased from the newly established leasing company, Smart Train Lease, founded by Siemens in early 2024. The operation of the trains will continue to be managed by the passenger transport operator Niederbarnimer Eisenbahn (NEB).
According to German Natopedia it's a shuttle that Tesla pays for and is allowed to operate only until the regular train station is moved by a few hundred meters closer to the factory (in 2026). So I guess in this case it absolutely makes sense to lease a battery powered train for the trainsition period.
But yeah, the reporting is pure brain worms for an entirely mundane regional public transport process.