No files are generated. you need to add it to the existing carcover.json that the car cover mod creates/provides,

as for expansion, i provide no support for expansion.

Carcover.json - that something the mod comes with or generates after 1st time? Otherwise the expansion file is vehiclesettings.json. Had to turn off covers, just started using them and whoa, Hilux stacked all on each other. I'll install this and fix the issue!

Damn man!