Hi Peter, I don't have a lot of experience with car modeling myself, so I can't really help you out very much with the whole big picture of that.

But if you do have a particular surface that is not working well for you, if you can post the .3dm file for that particular piece I could probably help you with that.

Or possibly you are running into a bug in Network, and it would help me to improve it to have an example of the problem...

But yes, in general car modeling is a pretty difficult area of modeling and MoI does not right now have a few of the tools for surface matching that tend to be useful in this area.

- Michael