I don’t know where to start development I have a background in 3d modeling and texture design but I don’t know how to format the models and textures.
I’ve read all the material on the wiki on the subject but am still struggling.
https://automation.gamepedia.com/Car_Body_Mods Here’s more of a reference you can use if you don’t need the full modeling process. 3ds max works too, and possibly Maya if you wanted to try but Blender is the most supported.
Feel free to join the discord here: https://discord.gg/automationgame if you have specific questions you want to ask the modding community.