The 3D effect is achieved by making a Normal Map of the tyre texture.
A Normal Map is like the answer to the question
"If this bit was raised from the surface, what would the light/shadow do aound it?"
When you combine the two, it looks 3D.
There are many ways to make them, but easy-peasy one is to make a PNG of the tyre texture, and feed it to this website:
Online NormalMap Generator FREE! Create a Normalmap directly inside your browser! No Uploads required, completely client-based
cpetry.github.io
Then make a DDS from the PNG you get back and rename it. You can inspect the tyre mesh to find the name, but the convention is:
For tyre.dds, the normal map is tyre_NM.dds
Add to the skin folder.
Good luck, and thanks for all the skins