Nah, I'm not gonna build one. I was looking into it ages back but realised it would be too hard to get the power I wanted. Your right devino, CURRENTLY. haha give it ten years or so and it might be different....The one thing I see as important is increasing the efficiency, theres a couple of fuel cell types that only heat up to room temp or so, and the hydrogen production could be made heaps more efficient....It's like steam cars, they had heaps of potential but nobody really went into it trying to make them efficient. Gasoline was just easier and better at the time......Thankfully big companies are getting really into hydrogen power.
My favourite example of it is the Doble steam car
Straight from wiki - "The 1924 model Doble Series E steam car could run for 1,500 miles (2,400 km) before its 24-gallon water tank needed to be refilled; even in freezing weather, it could be started from cold and move off within 30 seconds, and once fully warmed could be relied upon to reach speeds in excess of 90 miles per hour (140 km/h). In recent years Doble cars have been run at speeds approaching 120 mph (190 km/h), this without the benefits of streamlining, and a lighter version of the Series E accelerated from 0 - 75 mph (121 km/h) in 10 seconds.[citation needed] Its fuel consumption, burning a variety of fuels (often kerosene), was competitive with automobiles of the day, and its ability to run in eerie silence apart from wind noise gave it a distinct edge. At 70 mph (110 km/h), there was little noticeable vibration, with the engine turning at around 900 rpm.
Contemporary Doble advertisements mentioned the lightness of the engine, which would lead customers to compare it favorably with heavier gasoline engines, but "engine" in a steam car usually refers solely to the expander unit, and does not take into account the complete power plant including boiler and ancillary equipment; on the other hand clutch and gearbox were not needed. Even so, the overall weight of a Series E was in excess of 5000 pounds."
Gotta love that