Posting skins for non-demo cars is fine, as the CMX viewer doesn't require a license to view S1-3 cars, and the templates are available for all to use.
It's only the posting of screenshots of the skins from in-game that would get you into trouble. Screenshots from the CMX viewer would be fine though.
It's only the posting of screenshots of the skins from in-game that would get you into trouble. Screenshots from the CMX viewer would be fine though.