Hey there. I need help with streaming some vehicles with the meta files so the player doesn’t have to download and install them. I am using the following packs: Sheriff and FIB Replacements and also LSPD Pack.
Resource Folder:

__resource.lua file:
Assuming you already got it working, here is a reference where you can find the names to include meta files, for further cases like this, needing help to do this.
In your case, you want to import the 3 files. This is how it would be done:
files {
'vehicles.meta',
'carvariations.meta',
'carcols.meta'
}
data_file 'vehicle_metadata_file' 'vehicles.meta'
data_file 'vehicle_variation_file' 'carvariations.meta'
data_file 'carcols_file' 'carcols.meta'