It's going to come down to what their specific inventory needs are, desire to have the car, what the wholesale market is for that car, and possibly their margin on the car you are looking at buying. Just asking "which one gives the most" won't be as effective as you actually taking the car to a dealer, and getting everything in writing. And remember, just because one gives you "more" for your trade in, doesn't mean you are getting the best deal. You have to compare all factors in the transaction (trade in, new car price, financing, dealer documentation fee, delivery fee, gap insurance, any dealer add-ons, etc...). It may take some time for you to do this process, but that is often necessary if you want "the best deal".