In most cases not a even swap the dealer has to make some kind of return so you might get a car that books a little bit less than your trade. Dealer are not in the trading business they swap cars in order to make money. if you car books for say $8000 then you can get one that would book for say $7000. If you have a dealer that you trust talk to them and see what kind of deal they can offer you. The best option would be to sell your car then take the money and buy a car you like then you know what your car is worth and how much you can spend.