Sunday, December 09, 2007

Honda Hydrogen Car

Bits and pieces from The New York Times. Cars - Reviews - Honda FCX Clarity - Fuel Cell - Test Drive. Where are GM and Ford and Chrysler?

"OFTEN, it is the smallest of gestures that deliver the most powerful messages. I was reminded of this last month when I settled into the driver’s seat of the FCX Clarity, a sedan powered by fuel cells that Honda will begin leasing to a handful of private customers next summer. Fresh from a briefing that detailed the car’s NASA-grade complexity, I wondered what procedures might be required to start the reaction of hydrogen and oxygen and bring the power supply to life."

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Normalcy is a recurring, and intentional, theme of the FCX Clarity. It is refueled using a high-pressure connector tucked behind a typical gas-cap door on the rear fender. It has a handsome exterior, a nice audio system and plenty of knee room in the back. (A design analysis is at nytimes.com/autos) Anyone who has driven a Toyota Prius will feel at home with the dash-mounted gear selector and the park button.

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Honda says the performance is on par with a similar-size car powered by a 2.4-liter engine, and it should know, as the 2008 Accord LX has just such an engine. The comparison is apt. The FCX motor produces 134 horsepower and 189 pound-feet of torque; the Accord’s in-line four makes 177 horsepower and 161 pound-feet. The Clarity weighs nearly 3,600 pounds, and while that is 400 pounds lighter than its predecessor, the Accord is some 300 pounds lighter yet. The wheelbases of the Clarity and Accord are identical at 110.2 inches.

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While the FCX seems fully qualified for local duties, its practicality for longer trips will have to wait on the availability of hydrogen. In this latest version, the range is a reasonable 270 miles on a single refill of the 5,000 p.s.i. tank behind the rear seat. Most fuel-cell vehicles using compressed hydrogen are now built around 10,000 p.s.i. tanks for greater range.

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Until now, writing about fuel cells has been a no-risk proposition, with no reality check looming, no looking back when the cars arrived in showrooms to see whether one had been embarrassingly optimistic. Way back in the 1990s, a physicist assured me that fuel-cell cars were 20 years away — and always would be.

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