Ray Harroun's introduction of the rear view mirror in winning the 1911 Indianapolis 500 was the first in a long list of motorsports technological advances related to the Indianapolis Motor Speedway and Indy Racing League that have translated to passenger vehicles worldwide.
In 2007, the IndyCar Series chalked up another by becoming the standard bearer for the "Greening of Racing" when 100 percent fuel-grade ethanol flowed through its Honda Indy V-8 engines.