There is some confusion as all the DLC seems to be disappearing from the list that would appear after following these steps. Not sure what is going on. Here is a quick tour of where to go when one or more of your newly purchased DLC cars do not show up. S397 changed the way you manage your DLC purchases, if you get the following error, here is what to do. First just load Steam. Right click on rFactor2 Then LEFT click on the properties drop down menu Then you will see another box, the last menu item is WORKSHOP. click on that, which will open a list of all your DLC, there you can unsubscribe single or groups of DLC.