Mazda have been working on the technology for ages, hydrogen and the rotary engine are actually the perfect pair. When I did a research project on alternative fuels back in High school, hydrogen was not viable in a piston engine. Seems BMW have done thier homework and now it is
It says it can run at 80 km/h thays close to 50 mp/h but 25 min. on equivilent to 300 metric liters of fuel is poor milage. Nice first attempt, but i'd like to see fuel cell technology come to rc as well.