This is the article I sent on the BEST list, just reposting it here so we can discuss it...

http://www.scientificamerican.com/article.cfm?id=bioelectricity-versus-biofuel

should we abandon ethanol pursuits? should we focus on electric cars from here? Or, is this analysis premature in the sense that as research progresses the chemical processes might become more efficient? Then again, burning seems pretty efficient because it is so simple...