Just bought a car. Can I take it back??

[TheRedRocket]

how old are you?

You might try contacting the better business bureau explaining that you got ripped off, that it was an impulse buy and a mistake and that you in no way can afford it and see if they will help you. They should be able to put more pressure on the dealership than you. Additionally you should contact who ever financed you explain your finances to them and why you can't afford it. Again they will have much more influence than you.