Another model railroad magazine ran an article about weathering on the cheap without an airbrush using common art supplies and brushes. I really like what the author had done and thought I'd try myself. He called this heavy weathering a 'rust bucket' car....one were the paint has failed and rust is coming up through the paint.
My attempt did not come out near as well as his did....but I think it takes more practice. Plus he said it took him 50 hours to do his....this was about one hours work. So maybe I need to spend more time. I do not feel it's my best job ever.....but rolling along at speed it will be fine. I may try again on another car....this was a car I bought in a lot and had about $5 in it....so even if I messed it up....not a big deal. I think I'll add it to the roster.