Hi Keith, definitely modeling a car is not an easy task.

One general tip that I would give is that sometimes it can be helpful not to try and model around every hole or edge that you initially see on the shape - instead sometimes it is better to model a larger sheet that has a more simple structure, and then trim that larger sheet to get some of the holes and edge structures that you want. You don't do this for every single piece, but if you are having a problem in an area where it is hard to get a surface due to irregular boundary edges, then that's the kind of situation that you will want to try this kind of approach.

I was looking for car tutorials, this one may give you some ideas: http://lmd.ifrance.com/html/audittus.html

- Michael