With compliments added to the Steam Workshop Mercedes Benz Collection
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=605848409

there are actually a few good ones out there already on YT. Texturing a vecicle isn't that different from texturing any other object. To get started I would recommend to look for videos where cars are beeing modelled with the help of blueprints. Modelling a car can be quite tricky for a beginner though. But with some time and dedication spend, it's manageable. But it will take some time to get used to the programs and to get to know all the features which might come in handy

i,m trying to find tutorials or help that would show me the steps in how to texture specifically for vehicles because i've never made models before and i'd like to try .

Blender for 3d modelling and Paint.NET (from https://www.getpaint.net/) for making the textures. But you can use any 3d modelling software which can export to .fbx or any image editing software to make some Cars, Buildings, etc

What softwares you use to create your mods ?