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COMMERCIAL IMAGE - In this handout image provided by Shell via AP Images, Team NUS Urban Concept from National University of Singapore in Singapore goes through a brake inspection during Day 1 of the Shell Eco-marathon energy efficiency challenge at Sepang International Circuit in Sepang, Malaysia, Thursday, July 7, 2011. Teams from all over Asia began to race their energy efficient cars against other universities during Day 1 of the three day challenge. (Alwin Lam Hoe Chuan/Shell via AP Images)