It's interesting that you ask that Mensa:
I actually plugged in data to the 'daylight' system in 3dMax for 10am, Phx AZ, Aug 3rd to calculate the lighting of this scene. Imported my P-51D model from years ago, changed materilals to 'mental ray' then applied the texture maps of the original model over them .. man she looks 'good'!
All the materials in the scene are built from lighting properties data that is plugged into mental ray from actual stone, concrete, chrome, aluminum, etc .. what I do is tweak 'em to get color-consistency-pattern I want.
The difference between the models is night and day. The vette is more than 3 times the polygon count of the Mustang
-Grayeagle aka Frank