A Alfa Romeo 166 averages €2,707 across all model years. Right now 5 are listed for sale, with the cheapest sitting around €1,744 (typically older years) and the priciest around €4,555 (recent years). The median is €1,744. A good price for a Alfa Romeo 166 is under €1,744; anything over €3,750 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €1,308 to €1,570 for this model, depending on year and condition.