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How do third-party banks issue car loans?
I have had it two way now: I got pre-approval from my credit union which just so happened to be one of the bigger vehicle lenders in the metro area.  What I found out was that the dealership (which was one of the bigger ones in the metro area) had a computer system that looked up my deal with the credit union. Basically, I signed some contracts and the CU and the dealership did whatever paperwork they needed to without me. I bought a used car and drove it off of the lot that night, and I didn't ever go back (for anything financial) Both my wife and her sister received blank checks that were valid up to a certain amount.  In the case of my sister in law, she signed the check, the dealership called to confirm funds and she drove off. In the case of my wife, she ended up negotiating a better deal with dealer finance, but I was assured she only had to sign the check, get it verified and drive the car home.