In Japanese, “mirai” means “future,” and the Mirai is the future of motoring: It runs solely on hydrogen and its only emissions are water. Expected later in 2015, the Mirai initially will be sold or leased just in California, where the infrastructure for hydrogen fueling exists. Range is around 300 miles, refueling will take about five minutes, and fuel is included for the first three years of ownership. The powertrain has an eight-year/100,000-mile warranty to allay early-adopter concerns.