I had trouble selling my Nismo Juke a couple of years ago privately, autotrader etc. WBAC offered me silly money but I id use tootle and sold the car to a dealer in Southampton. I actually got £500 less than what I wanted, Dealer came and collected the car and deposited the agreed valuation in my bank account before they took the car away. Try using it, nothing ventured, nothing gained.
Just load in your details and state what you would like and offers will come in from dealers. You contact the one that most appeals and away you go IF you want to proceed. Free service too.
https://www.tootle.co.uk/sell-my-car-online
https://www.tootle.co.uk/#how-tootle-works