This video is no longer available. Long before the popularity of car racing video games, the slot car craze in the 1960s and ’70s had young people and their parents obsessed with racing scale models.

Most people use Bring a Trailer to shop for cars, but you can also use the platform to buy boats, parts—or one of the most insane slot car race tracks you’ll ever see. The Detroit-based Slot Mods is ...