The 2015 24H Series powered by Hankook was the first season of the 24H Series with drivers battling for championship points and titles. It also marked the first season with official FIA International Series’ status.[1] Dutch agency Creventic, the organiser and promoter of the series, organises 24-hour and 12-hour races since 2006, but the first year with multiple races was 2008 and therefore 2008 is officially the first season of the 24H Series, so this is the eighth season of the series. The races were contested with GT3-spec cars, GT4-spec cars, sports cars, touring cars and 24H-Specials, like silhouette cars.
- ^ "24H Series General Information 2015" (PDF). Creventic. p. 6. Archived from the original (PDF) on 2016-02-15. Retrieved January 2, 2016.