• What? Limited-production, midsize, front-wheel-drive, four-door, four-passenger sedan powered by electricity from a hydrogen fuel cell backed up by lithium-ion battery pack.
• When? First was delivered July 25 in Southern California, where public hydrogen filling stations make a hydrogen car feasible.
• Where? Built at Tochigi, Japan.
• Why? To field-test production hydrogen cars in customers' hands.
• How much? Leased for $600 a month for three years.
• How many? About 200 the next three years, most in the U.S., a few in Japan.
• How potent? Electric motor is rated 134 horsepower, 189 pounds-feet of torque. Lithium-ion battery pack is rated 288 volts.
• What's missing? Power seats, sunroof, leather, auto on/off headlights. Otherwise loaded.
• How big? Four inches shorter than Honda Accord, about 200 lbs. heavier, otherwise similar. Clarity is 190.3 inches long, 72.7 in. wide, 57.8 in. tall on a 110.2-in. wheelbase. Weighs 3,582 lbs. Passenger volume is listed as 100.8 cubic feet.
Trunk: 13.1 cubic feet with under-floor storage well. Carries 700 pounds of people, cargo.
• How thirsty? Rated 77 miles per kilogram of hydrogen in town, 67 on the highway, 72 in combined driving. That equates to 79/68/74 mpg of gasoline, according to Honda.
Regular-production test car's trip computer showed 61 mpkg in suburban driving.
Tank holds 4.1 kg hydrogen compressed at 5,000 lbs. per square inch.
• Overall: System whines annoyingly. (USA TODAY, 9/5/08)