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COMMERCIAL IMAGE - In this handout image provided by Shell via AP Images, Shell volunteer Keat Hoe is seen 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. (Janson Lee Kok Wooi/Shell via AP Images)