In the world of custom die-cast 1:64-scale toy cars, enthusiast builders replicate most of the cosmetic stuff people do to full-size vehicles—swap wheels, repaint shells, widen tracks ...

Until just a few weeks ago, we had no idea that modifying 1:64-scale die-cast toy cars was a thing, but then we Googled it and went down an entirely new rabbit hole. These enthusiast builders can ...