The market is pretty poor at the moment and prices are dropping - particularly for electric vehicles. The run up to Christmas is always a quiet time for dealers, but it seems to be especially bad this year - the cost of living crisis means few people are looking to change their car. We would expect the market to revive slightly in 2024, although it's not going to return to the inflated prices we saw coming out of the pandemic. The margin for each car will vary a lot depending on individual models, the type of dealer and the price of the car - as you say, it's not pure profit, though, with VAT, prep and warranty costs forming part of it. The cost to change won't be changing dramatically but it's worth looking at how you can maximise the sale price of your current car - consider selling it privately, for example, and consider putting a fresh MOT on it if necessary or sorting out any minor bodywork issues (an immaculate Yeti will always be able to command a strong price tag - they have quite a following). If you act quickly, you might find a dealer ready to offer an excellent deal before the end of the year.