You need to have base game to claim this DLC
DiRT Rally 2.0 - Finland (Rally Location)
https://store.steampowered.com/app/1118292/DiRT_Rally_20__Finland_Rally_Location/
DiRT Rally 2.0 - Germany (Rally Location)
https://store.steampowered.com/app/1004892/DiRT_Rally_20__Germany_Rally_Location/
DiRT Rally 2.0 - Sweden (Rally Location)
https://store.steampowered.com/app/1004891/DiRT_Rally_20__Sweden_Rally_Location/
DiRT Rally 2.0 - Wales (Rally Location)
https://store.steampowered.com/app/1004894/DiRT_Rally_20__Wales_Rally_Location/