The fuel cell version of the Clarity cannot be bought outright, as it's only available as a lease; Honda's suggested retail price for the vehicle is $58,490.
Already a year ago, Honda mentioned the 36-month lease price as $369 per month. For that, a Clarity Fuel Cell driver gets to do 20,000 miles annually, use up to $15,000 worth of hydrogen fuel, and gets to use a "luxury vehicle" from Avis for up to 21 days when in California – presumably for drives outside California's fuel cell station coverage areas. The 174-horsepower Clarity Fuel Cell's range is mentioned at 366 miles, its fuel economy has been rated at 68 MPGe combined, and it reportedly takes 3-5 minutes to refuel. It also qualifies for a $5,000 tax rebate.
Compared to the similarly hydrogen-powered Toyota Mirai, the Honda's yearly mileage allowance is markedly higher, as a Mirai driver has to settle for a 12,000-mile limit. The Mirai's range is mentioned to be 312 miles, too, so the Clarity will take you farther in a couple of ways.