From the
BBC, A hydrogen car (which, unlike most current designs, actually has the potential to be extremely efficient, using 6kw as opposed to upwards of 80kw on most similar cars).
This story has been making me really excited this morning (as has
this one) because not only is it said to be extremely efficient (achieved by the use of "ultracapacitors"— also, totally fucking rad) the designs will be "open source" allowing for designs to be improved, tweaked to fit different environments, and facilitating the use of local man-power & materials. So jazzed.