Roger, This was indeed a learning project for me as well. In the past it was mostly just black washes and some "oil" messes on chassis etc. Check out Youtube for videos on weathering tips. There are a lot of trains and military subjects, but it still applies to the auto world many times as well.
Chuck, Terry, Steve, Michael, Ira, Johann, thanks guysI I tried to learn as I went along, and maybe can apply what I learned to future projects
Ray, what part of Arizona? You going to Modelzona in Nov?