Indy. Daytona. Talladega. Darlington. Bristol. Mention these monuments to internal combustion in a crowd of race fans and watch as they get lost in memories of tire smoke, crackling exhaust, massive V-8 power and the thrill of their favorite racers bump-drafting each other across a finish line. But to meet the demands of nearly 40% of the U.S. population that considers itself “eco-responsible,” auto racing is working to reduce its impact on the environment. And it’s learning lessons that can be applied to auto dealerships nationwide.