Why not buy directly from dealers who have it in stock? If the car is desirable, the originating dealer is not going to trade. If there is a reasonable trade to be made, it will still result in $100 plus of extra costs. You won't be charged directly, but you can bet it will reduce your negotiating power. At least there is some available stock, unlike Tesla's Model 3. As far as finalizing a deal, why not try CarGurus? You might get a better price than negotiating directly, or at least have a better basis for a starting point. I think the game you are playing is that if the final deal is extra profitable for the dealer, they are more likely to be able to negotiate a trade. Right now, they probably cannot unless you pay an above average price.