I attached a picture I took from the install instructions for the Curt hitch part # C13305 that fits the 2018 Volvo S90 Inscription that covers what needs to be trimmed as well as having a diagram. Basically it's just a small section that has to come off of the lower rear fascia.
We don't have a hitch that fits a V90 Inscription at this time (November 2018). view full answer...