We've all heard about greener cars or zero emission cars, but heres something thats different.

A Georgia Tech team is planning to create a system that is going to capture the carbon from conventional fossil fuel car exhaust and then transport it back to be reconverted to liquid fuel.

For more info check out this _link_
http://thefraserdomain.typepad.com/energy/2008/02/georgia-tech-cc.html

This sounds like a very positive idea. I'm a little confused though - Would it use existing fuels, or would it require a new kind of liquid fuel?

No , it uses existing fuel, so basically the emission that comes out of the muffler is captured and reused to produce gas to power your car, which is then captured and reused again in a cycle.

That sounds good. Using existing fuel like that probably makes the system that much easier to switch over to, as opposed to an alternate fuel source like propane that doesn't have the wide distribution of more conventional fuel.

Yes, although the problem would probably be on the a)cost of producing this type of system and b) the aesthetics of it.

With our market system right now, I doubt these type of renewable systems will come cheap, again going back to the single biggest problem that prevents us from getting greener

Also, I would assume that such a system would require a large amount of space and I would be curious as to how manufacturers would equip them on the vehicles.