Partly true Slotcarman. Aurora used to use four cavity molds for their bodies. If I remember correctly that is what Beers told me. The other parts are very small. Things like bumpers, and the wing, roll bars, windshield frame and nerf bars for the mods, proby were made all in one mold at the same time, all attached together on a sprue tree. All ready for chroming that way! Same for the clear glass windshields, three or four at a time attached together with a sprue tree. If ya look really close to the original Aurora parts you can see where they were attached to the tree, same with other manufacturers. Even the huge plastic cases for 1:1 car air conditioners were made two at a time, smaller parts were in the same size large molds to fit in a 200 ton press, there were just more cavities connected by the sprue tree. For those that don't know what a sprue tree is, or the how, a sprue tree is formed because that is the pathway the molten plastic followed to get into the cavities when it was injected into the mold. They are those cute little things that have all of the model cars parts attached to them in a 1/24th scale model kit. All of the parts that needed chrome will be on the same tree! SO, in the case of the mod bodies, there was proby a mold for the bodies(four cavities, I'm guessing at these), a mold for the chrome parts(proby two sets at a time), and one for the driver(tough one to guess, I'll say 12 to 24 on one or two trees). JMHOFO!!! Have a good day!