@ Anis,

the purpose for my 3D car model ist at first to learn how to model with nurbs. I come a long way from polygon-modelling.
It's totally different.

In my job I create virtual simulation of complete next generation cars. Usually I get the model from a designer, but sometimes I have to fix some wip-datas. And I have to model the whole enviroment for my simulations(there is alot to do if you want to have a nice showroom). Nurbs modelling seems to me the better way to create technical objects... so i have to learn it.

Second reason. me and a workmate want to create a own virtual simulated car from the scratch... So I have to model at first:)

What kind of question do you have to my workflow. I'm glad that I could create a rim but this was my first and you can imagine how crazy my workflow was :)

Cheers
Jan