I want an air car!
This is a car that runs completely on just compressed air.
Granted we're talking city driving only, but from what I saw on Discovery last night, it would easily get me to and from work on a single charge of air.
Oh and they have plans for a hybrid like version that has a conventionally fueled engine so you can drive it at speeds greater then 50KPH or distance over 200-300 Km.
(conversion to MPH and Miles is left to the reader :) )