well today i met matt (the other 3D Tutor) for the first time. just cracked on with more research today. going more in detail with the tyre wall building. i now have a fair idea of how it is done. my next task is to make a 3D model of how it is done or at least how i THINK it is done. i will upload an image of this once i have done it.
UPDATE:
here is the 3D model of my interpretation of the tyre wall building.
