Driving Detroit: Shell Eco-Marathon brings a fuel economy fight to the streets of Detroit

The 2016 edition of the Shell Eco-Marathon returned to Detroit, challenging high school and college students from all over to design and build super fuel-efficient vehicles. Split between two categories, teams can construct either a Prototype, a low-slung vehicle aiming for extreme efficiency, or an UrbanConcept that looks more like a traditional road-going car. Within each category, teams select from seven forms of propulsion energy including gas, diesel, ethanol, compressed natural gas, gas-to-liquids and ethanol. If teams opt for an electric powertrain, they can go with battery electric or hydrogen fuel cell.