  urlLink Howstuffworks "How Air-Powered Cars Will Work" : "One possible alternative is the air-powered car. There are at least two ongoing projects that are developing a new type of car that will run on compressed air. In this edition of How Stuff Will Work, you will learn about the technology behind two types of compressed-air cars being developed and how they may replace your gas guzzler by the end of the decade! " (via urlLink Rebecca Blood ) 
