A British company has beaten everyone to the punch when it introduced the world's first fuel-cell motorcycle, the ENV. Its fuel cell can be removed from the bike to power other compatible vehicles that could be designed. The bike can reach speeds of 50 mph and can travel for up to four hours without need for refueling. Once again the biggest hurdle is refueling. Makers of the ENV say that a mini hydrogen creator, about the size of a shoebox, would take about 5 minutes to recharge the CORE fuel cell.