Selling slightly more expensive car privately

Would you like to sell my audi s5 Sb EZ 05/2017 private 1hand audi Ag 2hand I very good equipment list price 81k. 5 years guarantee. 17Tkm run I want to achieve 51-52k Is it possible for you to experience the private sale of the s5 or what prices you have achieved, and what about the demand and how long the sale took? And is it hard to find a buyer in this price region?