If you absolutely must.
I’m thinking if you have to get to a teaching placement, or a well-paid internship, or your father is deathly ill and you have to be able to go home at a moment’s notice.
Don’t drain your finances for the sake of a shopping trip to Erie.
[And if you’ve decided you absolutely need a car, don’t get a new car. There’s no reason to go into debt with a car payment. If you can’t afford a car outright you can’t afford a car.]