Engineering majored students unveil their prototype eco-car for the Shell Eco-Marathon Philippines at the University of the Philippines in Quezon City, the Philippines, Feb. 1, 2017. Shell Eco-Marathon is a competition in which participants build special vehicles to achieve the highest possible fuel efficiency. Many student teams will compete in the Shell Eco-Marathon Philippines from February 2 to 5. (Xinhua/Rouelle Umali)
