This has gotta be BS.

Think about air tools in a shop.  Your compressor is cycling on all
the time just to unscrew bolts.

How the heck will you propel a Vanagon that weighs thousand of pounds
for many miles using compressed air?

Call my cynical but I don't believe it...

>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!