[Civil]

YES, bidding wars throw the ball in your court big time. I know a lot of folks that have done this with vehicle purchases along with other services... phone/internet/mobile internet is a popular one.

Only thing I make sure to not do is take my used car I want to get rid of to them, you'll almost always lose big on trade in's, selling privately has served me well.

Agreed on the trade ins. The dealership will pay you a low price and then mark it up when they sell it to someone else. The trick is to sell it for more than the low price the dealership wants to pay you, and less than what the dealership will sell it for later. Then its a win-win for you and the buyer.