General Motors is now 1 million miles into its fuel cell experiment and company officials say having everyday people drive a test fleet of pollution-free cars has convinced them they are on the right track.
The automaker on Friday said it passed the 1 million-miles-driven mark in its fuel cell Chevrolet Equinoxes, with about 5,000 people rotating in and out of more than 100 cars over the past 25 months.
GM officials say "Project Driveway" has proven the viability of fuel cell vehicles, which are powered by electricity generated by a reaction between oxygen and hydrogen. The only emission is water vapor.
But numerous obstacles remain for GM and its competitors. The vehicles are expensive to produce and the nation lacks a network of fueling stations.
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