This doesn’t surprise me at all. I recon second had car prices have gone up 25% in the last year alone. I bought a car 3 months ago from a main dealer (car was 4 months old when I purchased it) We buy any car are already offering me 10% more than I paid (even they couldn’t knock me down as there is not a stone chip wrong with it)
The down side was I replacing the car I bought 4 years ago with virtually the identical car. 4 years ago I spent £15K on it and now I’ve just spent £22k on the same car.
Even main dealer forecourts down my way are looking a bit sparse as they are not getting the trade ins as they can’t get new cars.