The 2015 Indy Lights season was the 30th season of the Indy Lightsopen wheelmotor racing series and the 14th sanctioned by IndyCar, acting as the primary support series for the IndyCar Series. The 2015 season was the second promoted by Andersen Promotions, who also promote the other steps on the Mazda Road to Indy. It was the first season for the Dallara IL-15 along with a Mazda MZR-R turbocharged 4-cylinder engine, developed by Advanced Engine Research.[1] 2015 was the second season with Cooper Tire as the sole tire supplier. The championship was contested over 16 races, starting on March 28 at St. Petersburg, Florida and ending on September 13 at Mazda Raceway Laguna Seca.
The 2015 schedule was released on November 3, 2014.[18] Iowa was added in place of Pocono, whereas Sonoma was replaced by a standalone round at Laguna Seca. The rounds at St. Petersburg and Toronto were expanded to double-headers, therefore the number of races increased to 16.
^Pruett, Marshall (February 5, 2015). "8Star continues driver search". Racer. Haymarket Publications. Archived from the original on 2015-03-17. Retrieved February 15, 2015. Scott will be in the car for the first race, and we have our second car now – a lot of people have shown interest in it, so we're hoping to get a driver in that car.