 Initially the two series had their separate calendars and TCR entires were eligible to enter and score points in both championships until 2017.In 2018 the calendars for 24H Series, Touring Car Endurance Series (renamed 24H TCE Series) and 24H Proto Series were unified and touring cars were only eligible to enter and score points in the 24H TCE Series championship.TCR touring cars are used as part of the Touring Car Cup of the FIA Motorsport Games.