http://news.ninemsn.com.au/technology/8464757/volkswagen-showcases-zero-emiss...

hmmm interesting..
but it reminds me of mr garrisons futuristic transport machine from south park

here is a link to the above
not a new idea from the info
interesting
http://gammasquad.uproxx.com/2009/12/garrisons-invention-from-south-park-thro...