Buy the car you can afford by paying in cash, or a small enough loan that even 10% will be manageable.
I still remember the first thing my bank offered me as a student in the US, a credit card, 25%+ apr, give that to a 18 years old clueless kid and you'll set them up for failure. The entire system is setup to make you think these interests rate are normal and that being in debt is a proper lifestyle