Hello,
I have an idea about Paint Jobs that are in the Steam Workshop. There are a lot of astonishing and beautiful liveries. But they are available only for single player. So, my idea is that it could work like with the DLCs. If someone had some liveries, then he could see them on the others trucks, and if someone didn't have them, then he could see the basic paint (if the main colour be blue, then visible to others would be one tone blue).
I'm not programmer or anything like that but I think it is possible.
I believe in you guys!