Shiga, speaking in Singapore, elaborated on Nissan's interest in developing a production hydrogen fuel-cell vehicle, and, to put it bluntly, he said the company didn't have much interest, the Japan Times reports. Sure, Nissan reached an agreement with Mercedes-Benz parent Daimler and Ford early last year to work together to speed up fuel-cell-vehicle powertrain development. Like Toyota, Honda and Hyundai, the automakers appear to be following the axiom that hydrogen fuel-cell technology is the best-of-all-worlds option for advanced powertrain because of the combination of zero emissions and conventional-vehicle-like full-tank range. Still, the prohibitively high cost of building hydrogen refueling stations will prevent any substantial adoption anytime soon, Shiga says, hence Nissan's focus on battery-electric vehicles.