About 600,000 plug-in electric cars have been sold in the U.S. in the past 10 years. The number for hydrogen fuel-cell vehicles is lower: as of the end of last month, it's below 1,600. Nonetheless, Honda, Hyundai, and Toyota today offer zero-emission vehicles powered by hydrogen in limited areas of California, and other makers are likely to launch... What’s the most important fuel-cell car so far? Poll results
About 600,000 plug-in electric cars have been sold in the U.S. in the past 10 years. The number for hydrogen fuel-cell vehicles is lower: as of the end of last month, it's below 1,600. Nonetheless, Honda, Hyundai, and Toyota today offer zero-emission vehicles powered by hydrogen in limited areas of California, and other makers are likely to launch...