This is the coolest air motor I ever seen!
Extremely efficient and quite possibly a solution for transportation - with only 1lb of air pressure utilizing all of the air power this is awesome!
http://www.engineair.com.au/

Hell my pickup could be propelled with my fart gasses    

Yeah... Amazing... sounds good for future  
Now no more worries in ..hike prices of petrol or diesel in india...  

See the size and weight of the engine....

I like the engine in this one. Seems more efficient than the normal one

MDI also has a good one. www.mdi.lu.
John from this website, they can use the car for 1500km on one tank of air? http://mdi.lu/cityflowair.php

I would sell this shit in my country.

That car on the home page - I'd call that the "Zolomobile" for its utter gay appearance :/
If their gonna make a car of the future they could at least make it look cool  
Like there could be an open wheel formula 1 air powered car race!

We have problems here in USA with gas;

And its only going to get worse as politicians devastate our planet.
A friend shared with me this and we discussed how it would be designed the mathematical requirements for he wanted to incorporate air brakes which transferred momentum back into compressed air; granted there's no way for it to be 100% self reliant transportation however considering where we are headed...

I'd be happy with a motorcycle that I push up a hill; roll down and capture enough compressed air to propel me for 100km at a decent rate!
Can u imagine refilling your gas tank with a hand crank sticking out the front like a 1930 model T ford had?  

I've tried contacting them however they haven't returned any information as of yet; probably because of patent shit - yet they have asians there in their website who are fully known for stealing ideas and manufacturing in their countries!
How many have purchased chinese knock off parts that sucked?