Home Feature The Shell Eco-Marathon: Where students race against the fuel gauge, not the stopwatch Over 170 student teams come to Londons Olympic Park to compete not for lap times or race position, but to be the most fuel efficient. Newsweek May 24, 2017 22:00 IST Close Over 170 student teams come to Londons Olympic Park to compete not for lap times or race position, but to be the most fuel efficient.