I resolved this by following this persons method of carpacks.
https://forum.cfx.re/t/release-quickly-merge-vehicle-meta-files/4033/24?u=lunar8383
resource_manifest_version '77731fab-63ca-442c-a67b-abc70f28dfa5'
files {
--gauntletc
'cars/gauntletc/vehicles.meta',
'cars/gauntletc/carvariations.meta',
'cars/gauntletc/carcols.meta',
'cars/gauntletc/handling.meta',
--gto
'cars/gto/vehicles.meta',
'cars/gto/carvariations.meta',
'cars/gto/carcols.meta',
'cars/gto/handling.meta'
-- THE LAST LINE ITEM ABOVE SHOULD NOT HAVE A COMMA ( , ) AT THE END
--'vehiclelayouts.meta', -- Not Required, only used on some addons
}
-
Credits to Radbug