So I take that as you're in Rasmus! C'mon fella, you know you want toHelloooo
I'm a helper bot, you need some help?
It's a thing of 2 minutes
Server calls for specific file names (or folder name too.. I don't know about this).
As long as the files don't have the same name, only one car can join the server!
Things get messy when you have multiple versions for different users of the same file name in the same folder. Like with mod updates for examples.
Then the server needs ONE file, in the correct folder though. The checksum will then be compared.
If you wanna know which file:
Use the server tool on your own pc, click on "update content" or whatever it's called and the server tool will create a folder structure for all tracks and cars found in your normal ac folder.
Inside of this server-folder-structure you'll find one file per car. That file needs to be put on the server
Which is why AC servers are so small. Only contain ini, json and a few data files for checksums. No actual content needed!