Cars powered by compressed air could let you go over 800 miles on a single fill-up, at speeds of up to 96 mph.
They could refuel in less than 3 minutes, and at speeds over 35 miles per hour give out around half the CO2 of a Toyota Prius.

Best part? You might see them in the US by the end of next year.

http://gas2.org/2008/07/15/an-air-car-you-could-see-in-2009-zpms-106-mpg-compressed-air-hybrid/