Here you can buy the key DiRT Rally 2.0 - Porsche 911 RGT Rally Spec (addition to DiRT Rally 2.0) at a bargain price. After purchase, you will immediately receive a key, activating which you will add DLC to the game DiRT Rally 2.0 to your steam account.

Without the original DiRT Rally 2.0 game on your account, you will not be able to activate the Porsche 911 RGT Rally Spec DLC add-on.

https://store.steampowered.com/app/977660/DiRT_Rally_20__Porsche_911_RGT_Rally_Spec/

You can activate the key in any region.

Key activation instructions:
1. After purchase, you receive a unique key that you need to copy and enter into the Steam client.
2. Opens steam. We are looking for the button "Add game" in the lower left corner, then click on "Activate in steam"
3. In the appeared window, insert the format key - HHHHH-HHHHH-HHHHH
4. After activation, the game will appear in your library.