JUNE 23, 2017 —For years, environmentalists and urban planners on both sides of the Atlantic have been fantasizing about few- or no-car city living, in order to make their municipalities easier and safer places to live, while also reducing their carbon footprint. The mayors of a number of cities, such as Paris, Athens, and Mexico City, have committed their governments to banning cars by 2025. Others, such as Oslo and London, have imposed partial moratoriums