Just yesterday I got a 1/25 '64 Belvedere to build as a slot car of Jimmy Pardue's #54. This is the first kit I've bought since about 1973 when they were maybe $3. Up til then, I had built a bunch of models but didn't do any detailing beyond the parts that came in the kit. Crude, but I had fun. I took them for granted at the time, but now I think about what must have gone into the making of those kits. Before CAD/CAM and CNC, how did they model those parts and make the molds? The parts, mostly, were visually accurate, to scale, and fit well. How was it done, especially for just a few dollars?