It's not much (8 or so variations) but I'm introducing car wars to a gaming group next week and wanted something a little more than just cardboard chits. So, having a little free time, I quickly knocked together a few models and ran them all out of my cheap and cheerful 3d printer.
https://www.thingiverse.com/thing:3133666
You can find the file there if anyone wants them. Dunno about doing any motorcycles (the scale's at the very low end of what my printer can handle already). If I have more spare time next week I'll give them a go.
Are there any other models for the "classic" scale floating around? So far I haven't found any. I didn't think downscaling larger ones would be worth it as you really need to design for the level of detail a 3d printer can manage at quarter-inch scales (mine look terrible, but actually a lot better in real life than in the painted photo on thingiverse suggests).