In Forza Horizon 5, there is a hidden "sexy" meter that even the devs don't know about. You will be deemed sexiest in all the land by all the NPCs if at least 10 of your cars have Rick and Morty paint jobs. Don't believe me? There's always like one Rick and Morty paint job for many of the vehicles in the community paint jobs. (Sorry, this is a troll tip, but very justified!)