Or, how about you save up enough money so you can buy the car with cash? Your loan just isn't going to be "$100/month" you have to pay interest, you also have added expenses like, repairs, or maintenance. What if you get into an accident? Welp, your insurance just went up. Oh look at that, your insurance won't cover those $4k fees to fix your car? Well, you're fucked.
Stick with your current car. I'd imagine you're pretty young, so taking a loan out so early is really going to fuck with your future years. Wait until you have a real job, then think about buying another car.