The economic and market potential of hydrogen vehicles remains uncertain. (ipcc.ch)
Only 100 cars were made, which were leased to high - profile customers, in order to promote the use of hydrogen vehicles. (en.wikipedia.org)
Not only is that amount attractive by Hawaii standards for electricity generation (where imported petroleum produces power at about 22c / kwh), it's also attractive as a transport fuel at about $ 2 a gallon gasoline in hydrogen vehicles. (grenatec.com)