JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Editorial use only.
Fuel-efficient vehicle competition. Technician measuring fuel for a student team who have built a fuel-efficient vehicle during the 2015 Shell Eco-Marathon - an annual competition sponsored by Shell, in which participants build special vehicles to achieve the highest possible fuel efficiency. Photographed in Detroit, Michigan, USA, in 2015.
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