@ TomiL: Yeah, perhaps, but back in the 80's when my dad drove the mk1 they had steel rims, and im sort of making a tribute to him, so it'll stay atleast for now. Making the RS rim aint exactly the biggest project, anyway ^^
You seem to be struggling with this project. Everything you have so far looks great to me. I'm liking the textures as well. This late in the game you may wish to think about concentrating on the details that will be seen in your final scene. With some of the great entries, I'm thinking this comp is going to come down to presentation more than detail and accuracy. Keep hammering away.