Thanks! I think the Red bus is getting a permanent mounted tire with a grey cover. Green bus is probably getting magnet mounted green covered tire.
Red is apparently now kind of a test bed to see what else i can do with these? I've had some interest in the Bay-window at many of the meets. Think i might be missing my initial goal of just set it up as a ready-for-radio car. Darn.
How about an Allstate 1-wheel trailer for some light weight Old-school cargo capacity.
https://www.thingiverse.com/thing:3377243
https://www.thingiverse.com/thing:3440426
...and broken shins. Can't forget to break your shins *completely off* if you remove the trailer and ever walk behind the car. Those bumper mounts weren't kidding.