Eco Illini Supermileage is a Registered Student Organization that designs and builds a prototype gasoline vehicle. Their focus is to make a vehicle as fuel efficient as possible and to compete in competitions such as the Shell Eco Marathon (SEM) and SAE Supermileage. In years past, they have competed in the internal combustion category, the largest category at Shell, but will compete in the electrics categories to improve fuel efficiency. The Shell Eco Marathon competition has been growing every year, with 100 teams from 10 countries and 1,200 students competing last year. The prototype category has few design restrictions to allow students to experiment with extreme fuel efficiency. The winning mileage is around 3,000 mpg each year with the American record being 4,100 mpg. This funding directly contributes to the materials required for the students to build and compete in the SEM.