Fuel-cell vehicles are widely considered the ultimate longer-term alternative to today's conventional cars as they run on an inexhaustible and cheaper source of fuel -- hydrogen, have no harmful exhaust emissions, and do not compromise driving performance.
The vehicle, which uses a lithium-ion battery, can run 620 km (385 miles) on a single fueling as measured under Japan's fuel efficiency test method, and has a top speed of 160 km per hour (99 mph)(!).
Apparently, electricity and water vapor are the only by-products of this hydrogen cell technology, although this technology may be a class action
But, I'll leave that to smarter people than moi.
The FCX Clarity will be sold through a newly established fuel-cell vehicle dealership network in the United States from July, Honda said. In Japan, sales are slated to start in autumn.
The main hurdles for their proliferation are a lack of fueling stations and the high cost of development.