The mistake was made when you went back the second time. You have far more power on the phone. The moment you agreed to go back was when you lost. Nothing changed since the initial visit, you looked at their car, they looked at your car. Had you have failed to put the deal together on the phone, you would be the same place you are now, minus the dealer bashing and a whole lotta frustration. Let's face it, we know what they're going to do despite our dreaming it may be better, so why not eliminate the drama altogether and refuse to play their game. It's a business deal, you and they either want to do it or not, pretty basic.