Hydrogen cars are already on the horizon. Ford has 33 test vehicles out on the road which are commercial versions of these add on kits for your cars. The technology uses electrolysis to take hydrogen out of water and add it to your current fuel. I have actually seen one on the road and from what ive read, they work very well.

Also the first ALL electric commercially available car has been released by a company called Tesla. Its not quite affordable for those of us not making millions, but its still a big step towards weening ourselves off of gasoline... Jay Leno bought the first one. Take a look at it here... http://www.jaylenosgarage.com/video/...tml?vid=229378

I wouldnt mind having one