doesn't godot automatically use FBX2glTF in the latest stable versions? while i don't doubt it's some config error on my part, i still don't understand what could've caused this.
the models are available in a variety of formats to ensure compatibility, so it's more a matter of your preference of format and program. don't be afraid to try.
i went to check out the early access packs and noticed the textures folder for the racing kit pack is empty, is this normal for the early access packs or was this an oversight?