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In some ways, Erik Lindbergh may turn out to be as important to the evolution of aviation as his legendary grandfather, Charles. He's a supporter of battery-powered flight, solar-powered flight, space tourism, and ultra-light aircraft that can be parked in our driveways and powered by renewable energy. Lindbergh's advocacy has already yielded some incredible results. We caught up with Lindbergh in Toronto, where he was the keynote speaker at a travel writer's conference, speaking about ideas th

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Edison2, the 2010 winner of the Progressive Insurance Automotive X-Prize for ultimate fuel efficiency, showed off the latest iteration, version 4.0, of its Very Light Car (VLC) at the Henry Ford Museum in Dearborn, MI, this week.

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On the heels of Audi unveiling its Urban Concept, Opel showing off its RAK e concept and Volkswagen pulling the sheets off its Nils concept at the 2011 Frankfurt Motor Show, Edison2 has revealed an electric version of the X-Prize-winning Very Light Car.

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Automotive X Prize winner Li-ion Motors may have tarnished its reputation soon after the Wave II claimed the top spot in the Alternative Side-by-Side Class. As we reported previously, four out of the five teams competing in the category signed an agreement, drafted on spiral bound notebook paper, just minutes before the final race to split the $2.5 million purse based on an agreed-upon formula. Now Li-ion is asserting that the agreement is void because all five teams remaining at that point did

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Electric RaceAbout – Click above to watch the video after the jump

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Neil Young's LincVolt – Click above for high-res image gallery

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Automotive X Prize Shakedown Stage showing Aptera 2e in action

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EVX Focus– Click above for high-res image gallery

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As our coverage of the 2010 Automotive X-Prize comes to a close, now is as good a time as any to recap some of the events that led to the crowning of this year's champions. From the beginning, many of the X-Prize entrants likely knew that the grueling competition would cut the massive field of participants down to almost nothing, but they tenaciously competed for the title with the goal of winning always front and center. Setbacks along the way led to the early disappearance of several teams, bu

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Li-Ion Motors Wave II – Click above for high-res image gallery

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Edison2's Very Light Car – Click above for high-res image gallery

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Conceived as a catalyst for change, the Progressive Automotive X Prize is an event engineers dream of and dreamers engineer to win. At stake is a share of a $10 million purse and the opportunity to impact the world. Announced in March 2008, the backers of the X Prize hoped their significant purse would speed the development of more efficient automotive transportation. How efficient? How about at least 100 mpg?

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Automotive X-Prize vehicles line up in the Knockout Stage – Click above for high-res image gallery

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Automotive X-Prize vehicles line up in the Knockout Stage – Click above for high-res image gallery

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In just a short while, the Automotive X-Prize will come to an end with an awards ceremony in Washington, D.C. Wish you could be there? So do we, but we'll all have to make due with the next best thing: live streaming of the event. Starting at 10:30 a.m. EDT this morning, the X-Prize team will offer a live video feed here.

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The on-track testing portions of the Automotive X-Prize are over with, and the vast majority of teams have been eliminated from contention. However, the $10 million in prize money won't be handed out until September 16. Before those checks are signed, the remaining competitors will have to complete a drive cycle on a dynamometer at the Argonne National Labratory. The dyno results will be averaged with the on-track results and the final numbers will have to top the 100 MPGe values originally set

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Edison2's Very Light Car – Click above for high-res image gallery

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Automotive X-Prize Knockout Stage – Click above for high-res image gallery

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Automotive X-Prize Knockout Stage – Click above for high-res image gallery

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