The Hyundai Nexo bests its predecessor, the Hyundai Tucson Fuel Cell EV crossover, in every category, the automaker says. The Nexo’s electric motor output climbs to 120 kilowatts, from 100. Its driving range is extended 30 percent, and its three hydrogen tanks can hold more fuel while weighing less.Hyundai says the Nexo delivers a full-tank driving distance of 378 miles under South Korea’s testing regime and more than 350 miles under the EPA’s. It rides on a dedicated fuel cell platform. The Nexo goes on sale in South Korea this month before reaching Europe in the late second quarter and the U.S. in the fourth quarter of 2018.