arizona: I'm just turning sixteen, and I have worked since I was fourteen in order to save enough money to buy a car. With what I have saved from working and with all extra money I have saved up, I finally have enough money to buy my own car. I'm looking to buy from a private owner, but before I do, I need to know if I'm old enough to buy a car in Arizona, under the age of 18?|||I'm kinda sure there is no age when you are ALLOWED to buy a car. There is an age limit to bet your license, but other than that I think you are ok to buy it.