Car notes are the devil

They are right up there with credit cards in terms of thing that will quickly burn you if you do not know how to handle it
The most important thing is never ever dominance through the dealer.
They rarely are good rates and if the rates are low, they are making money off the car anyways.
The best thing to do is finance through a credit union, bank or online before hand. You will essentially have a blank check to use at dealers.