“We just keep at it, we don’t give up just because something doesn’t work,” said Collin Gruntman, 17, when asked why so many teams from Indiana compete in the Shell Eco-marathon every year in Houston, Texas.

Gruntman, a junior at Goshen High School in Goshen, Indiana, explained that his team’s fortunes had started looking up by Saturday afternoon. On Friday, the group’s car developed problems with the fuel injection system, so the team worked into the night to change it over to a carburetor.

“After that is was running all right, but then we busted a sprocket,” Gruntman’s teammate, Scot Huf, 15, said. The team was hard at work on the small, gas-powered vehicle in their pit stop inside the George R. Brown