Why do car dealerships let you drive off in the car without knowing if the bank will approve your application. I just bought a used car and the dealership is aware of my poor credit. Rather than telline me "let me try to see if I can work something out" They hand me the keys and said "Nice working w/ you". After a week of having the car they call me and tell me I have to put 3500.00 down or get a third co-signer. Why don't they just get approval first then let me drive the car away?