I would really enjoy have all those official sponsor logos but I think we can't have any sponsors that are linked to teams and put a red bull logo on the GR Yaris for obvious licensing reasons. This "issue" is really common and is why on GT you could not use all the decals you could use on other brands on Ferrari cars for example.
But something like Fanatec logo that is not really related to a specific car brand, I do not see why not. Real world sponsors do add to the immersion compared to all those (same as in the F1 series) imaginary brands.
Interesting point there, I guess a car team that used Michelin IRL wouldn't be pleased if you put a Pirelli logo on.
