There is no tool invented that is more important to sim racing painters to use than this 3d app. This is it. You can import your 3d model (x file) that is provided with every mod that every mod maker has ever made in the history of NR2003.
You then import your paint job that you are working on, so that you can line things up, figure out logo placement and number placement and size. This is a must have if you plan on making any sort of template in NR2003.
It can’t be stressed enough that if you are serious about making your paint job and templates look professional, this is the tool that is going to make that goal possible.