If you're only borrowing a grand or two, I'd suggest interest free credit card if you can pay it back over say 15 months. There are some fab offers at the moment, Santander being one, 0% transfers and purchases for 15 months. Unless the dealer offers 0% Interest finance. Either way haggle but play poker with it. Don't give much away. Just get his best price. I don't know much about cars but money I do!!;-)
Good luck.
Good luck.