A Citroen XM averages €3,694 across all model years. Right now 10 are listed for sale, with the cheapest sitting around €999 (typically older years) and the priciest around €10,000 (recent years). The median is €3,125. A good price for a Citroen XM is under €1,695; anything over €4,625 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €2,344 to €2,812 for this model, depending on year and condition.