Custom Liveries in a CSM Mod?

I am using CSM to enjoy some of the amazing full season mods this community has put together; and I was wondering- Is there any way I can use a custom livery of my own creation, while also using one of these CSM-loaded mods?

I'm not the most modding-literate guy, so if it is possible, can somebody give me a short rundown on what I'd need to do?

Hello Friend. From what I understand, it's just about replacing the files in the Cars folder of the installation with your creations. I have done it but it has only worked in a couple of MODS, although I have been satisfied. What customizations do you have? I would like a set with F1 champions cars to make a champion MOD.

The problem is I am running a full season mod already through CSM. There's no car folder, as the mod is one file. So I'd need to know how to run that mod while at the same time running a custom livery for my car.