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For at least a decade, carmakers have been professing their deep and abiding interest in electric-drive vehicles whenever possible. But until recently, it wasn't always clear which of them were really sincere. Today every last one of them seems sincere. As this year's "Top 10 Tech Cars" package shows, ever more varied hybrids are going into mass production, along with-you betcha-a few all-electric cars. Some of the electric-drive machines aspire beyond mere greenness to heart-pounding performance, an aspiration that may seem strange to those taught to view electric cars as spacious, all-weather golf carts. But performance is indeed a logical goal, given the instant-on torque that electric motors provide. While electrons may now be a recurrent theme of our annual Top 10 automotive reports, we do not slight the internal-combustion engine, which has lots of life-and technological enhancements-to come. And for those who don't spend a whole lot of time worrying about whether they're treading lightly enough on the planet's roads, we include two ultraperformance German sports cars that run purely on gasoline and adrenaline. One can easily be yours. If you're willing to trade in your house for it.

Japan's Daihatsu Motor Co Ltd said it has developed a technology to make fuel cells without platinum, the precious metal used in the electrolyte process in existing hydrogen-based fuel cells. By using alkali, instead of acid, anion exchange membranes, Daihatsu's fuel cell can work with less costly metals which are less resistant to corrosion than platinum, such as cobalt or nickel, Daihatsu said in a statement, Reuters said

des videos et une doc exhaustive sur des énergies alter aussi ...

Talking about turning the world upside down.

General Motors has announced it will work directly with A123 Systems, a start-up based in Watertown, MA, to develop batteries that are fine-tuned for the Chevrolet Volt, an electric vehicle scheduled for production in 2010 or 2011. The new agreement between the companies is designed to speed the vehicle to market.

After years of false starts, a new industry selling motor fuel made from waste is getting a big push in the United States, with the first commercial sales possible within months.