Some states restrict Kei cars—often Kei trucks, in this case—to working as farm vehicles; depending on the state, they may travel up to 20 miles from the farm. Some states like Alabama and Arkansas allow them with conditions such as speed restrictions or no highway use. And others are outright banning them. Georgia, Maine, and New York have all done so, and now Massachusetts is the latest to join that movement, helpfully even publishing a list of examples of Kei cars, but it won't now register. Are they safe on American roads? The states aren't all using the same reasoning for their crackdowns. In some cases, Kei cars have been classified as "off-road vehicles," deemed unfit for road use. In other cases, state DMVs have pointed to the lack of compliance with federal safety standards as justification for banning them. The thing is, that's not precisely a misleading argument. Kei cars are small, even compared to cars you think are small, like a Mini Cooper or Fiat 500e. In 2017, the fine people at the Lane Motor Museum held a microcar rally, allowing me to drive a whole array of tiny four-wheel vehicles, including more than a few Kei cars.