Saw this on the History Channel last night (or was it Discovery) either way.
what a great concept, and a perfect solution to high oil prices!

http://www.youtube.com/watch?v=Dq8aZVLpf-c

Air tanks fixed to the underside of the vehicle can hold about 79 gallons
(300 liters) of air. This compressed air can fuel the e.Volution for up to
124 miles (200 km) at a top speed of 60 miles per hour (96.5 kph). When your
tank nears empty, you can just pull over and fill the e.Volution up at the
nearest air pump. Using a household electrical source, it takes about four
hours to refill the compressed air tanks. However, a rapid three-minute
recharge is possible, using a high-pressure air pump.
http://auto.howstuffworks.com/air-car1.htm

There is even a hybrid version of an air engine. How the Scuderi Air Hybrid
Engine works . http://www.youtube.com/watch?v=Kogz4wedwtk  (German company
too, with US office is close to Boston Bob's)

Now, the challenge, who will have the first Vanagon with one of these
motors!!

Jack R.

84 Westy Wolfie