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Associated Press
IMAGE DISTRIBUTED FOR SHELL - The Autonomie III, vehicle No. 7, Prototype, running on Diesel, competing for team GMP Valenciennes from IUT GMP Valenciennes, France, on the track during final day of competition at the Shell Eco-marathon Challenge Europe held at The Ahoy centre in Rotterdam, The Netherlands on  Sunday, May 19, 2013. Teams from universities all over Europe have brought their energy efficient cars to compete through the three-day challenge. (Ermindo Armino/AP Images for Shell)

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