

It usually doesn’t work quite like the example above. Using that example…the dealership will only give you $4k for your old car, even though it’s worth $10k. They then turn around and sell it for anywhere from $8-12k, netting themselves a tidy profit on the vehicle now for the second time.
The convenience makes this worthwhile for most car buyers, even if they could get another few thousand if they did everything themselves and paid full taxes. Dealership of course loves it and laughs all the way to the bank.
Good point, this is fairly common as well. I’d recommend avoiding financing entirely if at all possible because of this, simply not worth it for a car unless it’s the only way you can get one that’s in decent shape.
If you have to finance, often times you can get a much better rate from your local credit union instead. Use that to make the purchase, instead of the dealer’s financier.