For the test event on 20/5/19.
- Donnington Park
- Clio cup car
- locate your packages folder located in: ...steamapps\common\rFactor 2\Packages
- Unpack .rar in there.
- Load up rFactor 2, go to the content box located (on the left, 2nd one down) and find the corresponding mods. Hit install and you're done.