Toyota says that fuel cell vehicles, not battery-powered EVs, are the wave of the future, because Toyota’s system provides “a cruising range of 650 km” (according to Japan’s generous JC08 test cycle) “and a hydrogen refueling time of about three minutes,” easily beating the range-constrained EVs that can take hours to recharge. The Mirai turns ambient air and on-board hydrogen into electrical power, producing no tailpipe gases. The only emissions are harmless water, and even the water can be kept in an on-board reservoir for a while, for instance if the driver does not want to leave wet spots in a garage.