I didn't see his post, but demo racers can safely post their skins on licensed cars with screenshots made inside CMX viewer as you said, but if the said demo racer is posting his skin through screenshots from in-game images, then that's another story.
the comic book serie "Michel Vaillant" by Jean Craton is one of my prefered.
the "vilains" in this serie are the infamous "Texas Driver's Club"
the emblematic pilot from the Texas was Bob Cramer.
as is possible, wear the N°13 on his car ...
i detest the texas team ...
but i love their skins !
i made the complete serie of them whith my prefered number (82) and some stickers of my Team, but i am proud to show you, some ones whith the number 13.
FXR skin now is updated but with same name and uploaded, if you have downloaded it but want the "new" one delete it from "skins" folder of lfs and "skins_dds" folder so that when you put it back the dds is updated.