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AP11070619012.jpg
In this handout image provided by Shell via AP Images, cars are lined up on the track for a group photo during registration day for the Shell Eco-marathon energy efficiency challenge at Sepang International Circuit in Sepang, Malaysia, Wednesday, July 6, 2011. Teams from all over Asia arrived for test day while their cars were put through technical and safety checks to make ready for the ensuing challenge. (Abdul ghani khan/Shell via AP Images)