2015 International V8 Supercars ChampionshipDrivers' Champion:Mark WinterbottomTeams' Champion:Triple Eight Race EngineeringManufacturers' Championship:HoldenPrevious2014Next2016Support series:V8 Supercars Dunlop SeriesAustralian Formula 4 Championship Mark Winterbottom of Prodrive Racing Australia secured his first championship title with one race remaining, winning nine races during the season, while Triple Eight Race Engineering won the Teams' Championship. The Enduro Cup was won by Garth Tander and Warren Luff, driving for the Holden Racing Team.