This structure should be followed for all addon vehicles, which are installed in your server-data/resources dir.
To enable them in the server, simply append start "dirName" to your server.cfg file.
The order of all data files before vehicles.meta and vehiclelayout.meta does not matter (from what I have experienced), however to ensure a custom layout works, the vehiclelayout.meta file must ALWAYS sit above your vehicles.meta (which must in turn ALWAYS sit last no matter what).
The load order contained in your __resource.lua should be as follows -
carcols.meta-CARCOLS_FILE
carvariations.meta-VEHICLE_VARIATION_FILE
contentunlocks.meta-CONTENT_UNLOCKING_META_FILE
handling.meta-HANDLING_FILE
shop_vehicle.meta-VEHICLE_SHOP_DLC_FILE
vehiclelayout.meta-VEHICLE_LAYOUTS_FILEIF PRESENT : ALWAYS JUST ABOVE VEHICLES.META
vehicles.meta-VEHICLE_METADATA_FILE- ALWAYS LAST
Folders with names encapsulated with [] will be processed as parent folders, which means resources can be sorted directly into these and referenced as if they were directly in resources/ e.g. resources/[missions]/myMission is referenced the same as if it was in resources/myMission (in this case you would append start myMission).
