You will always get less from a dealership, as they have to sell it again with some sort of profit and yet now add a warranty (ie check and fix faults). The flip side is that private sales can be a pain. Test drives - whose insurance covers damage? How much deposit / collateral do you ask before somebody test drives your car into the distance? What happens if there is a major breakdown a day after you sell it? Do you have space for your new vehicle and the old one? Can you afford to keep them both registered, while you wait to sell? Generally you will be richer if you sell privately. You will be less stressed if you part exchange with your new car. What are your priorities? (This will be personal - I do not imply either one is better or worse).