Concept cars focusing on alternative fuel

[Steve]

http://msnbcmedia.msn.com/j/msnbc/Components/Photos/070917/070917_ford_hmed_9a.thumb.jpg (http://www.msnbc.msn.com/id/20822440/)In recent years, manufacturers have played up the visual and aesthetic qualities of their concept vehicles. But alternative-fuel technology is the focus of forward-looking concept cars unveiled at the 2007 Frankfurt Auto Show.



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