Disappearing cars [solved]
I was creating a car, and because fixtures disappeared from "base" (the only trim had no fixtures, they were visible only in first fixture tab) I cloned it. That didn't help, so I tried to delete the clone, but that didn't work. Then I quitted the editor and tried to delete the clone from the model list - and it worked. Oh, how well it worked... Everything I've created - all cars, companies and engines - just disappeared. All of this still exists in game files (Automation\Cars, Companies and Engines folders), but is invisible in the game. I tried deleting the feral car, but that didn't help. I've created a new car after this, and it's invisible too.