Shell Eco-Marathon is a worldwide energy efficiency competition organized by shell. Participants build automotive vehicles to achieve the highest possible fuel efficiency. There are two vehicle classes within Shell Eco-Marathon: Prototype and Urban Concept. There are three energy categories within Shell Eco-marathon: battery-electric, hydrogen fuel cell, and internal combustion engine (gasoline, diesel, or ethanol). Prizes are awarded separately for each vehicle class and energy category. The pinnacle of the competition is the Shell Eco-marathon Drivers' World Championship, where the most energy efficient Urban Concept vehicles compete in a race with a limited amount of energy.Impact InnovationEfficiency and feasibilityManufacturabilityShell Eco-marathon competition are held around the world with nine events as of 2018. The 2018 competition season includes events held in Singapore, California (US), and Paris (France), London (UK), Johannesburg (South Africa), Rio de Janeiro (Brazil), India (TBD), and China (TBD). Participants are students from various academic background.