Comment: Check this out.

(See in situ)


Check this out.

Compressed air locomotive, Homestake Mine No. 1A, powered by compressed air at 1000 PSI, purchased from H. K. Porter in 1928, in service until 1961, in South Dakota.

http://en.wikipedia.org/wiki/File:Compressed_Air_Loco.jpg

and

Behold a New Hybrid Car Powered by Air...Yes AIR!

http://www.forbes.com/sites/daviddisalvo/2013/01/24/new-hybr...