From a post by Damon Lavrinc at Wired, in which Elon Musk argues vehemently against hydrogen fuel cells for autos:

“There’s an old joke about hydrogen power: It’s the fuel of the future, and always will be. Elon Musk doesn’t just agree, he called out hydrogen fuel cell vehicles as ‘bullshit,’ claiming they’re more of a marketing ploy for automakers than a long-term solution.

The comment from Musk came during a speech to employees and enthusiasts at a new Tesla service center in Germany. The electric automaker’s co-founder and CEO was onstage espousing the virtues of the Model S when he went off on a tangent about EV naysayers: ‘And then they’ll say certain technologies like fuel cell … oh god … fuel cell is so bullshit. Except in a rocket.’

Musk goes on to state that even given the very best hydrogen technology, it doesn’t come close to the energy density of a modern lithium-ion battery pack like that found in the Model S.”

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In 1978, Jack Nicholson invests in hydrogen-powered cars: