I always put the car on a credit card. Then I flip it to a car loan. Nothing like waving plastic under their little noses.
I like to pull a kilo bar of gold out of my pocket and drop it on their desk.
Good to do if you have a high enough credit limit. Or if you have a card such as Amex which doesn’t have an upper limit.
The credit card fees that the dealer would pay are enormous. So I have been told once when I was car shopping.