There's a big upside to financing a car no one has mentioned. Your credit score. All else being equal, it goes up a good bit if you have a car financed and make the payments on time. With the low or no interest financing available, definitely finance (a car you can afford).
No offense to anyone who has posted in this thread, but paying cash for everything is usually a sign of a scarcity based attitude. People are so "scared" of the idea of having to make payments that they want to pay everything off, when the truth is that borrowed money is cheap and you're better off NOT paying cash for anything.
Why the hell would you want to payoff a car or house when you can borrow the money for 5%? Surely you can figure out something else to do with that cash that will make you more than a 5% return.
Financing and leverage are great things when you use them properly. Most "ballers" don't pay cash for stuff (until you start talking about people with 9-10 digit net worths)
LOL - If your a true baller why the hell do you even need credit?