So, I went inside an automation car and there was a steering wheel and two seats. How did this happen?
There's an automation mod that adds interior pieces you can place. Whatever vehicle you downloaded had those bits placed in.
If you want to, you can go into Blender and find out what material is the glass material and find it in notepad++ in the materials.cs and add the following value: translucent = "1";
It is a mod; most possibly this one https://steamcommunity.com/workshop...ion=readytouseitems&actualsort=mostrecent&p=2