Student teams from around the world participate in the Shell Eco-marathon (SEM), a unique low energy consumption competition for student teams. Within the competition the teams strive to design, build and drive the most energy-efficient car. In three annual events in Asia, Americas, and Europe, student teams compete on the track to see who goes furthest on the least amount of fuel. The competition evaluates different aspects of the car, the most important of which is of course the energy consumption: the less energy the car needs, the better it will rank.