I for my 06 wrx 2 years ago when I was 19. Only had 40k miles on it. I should have it fully paid off in the next couple of months. Though I would have had it prided off a long time ago if I didn't start modding it. I have quite a bit more money in mods than what I owed on the car.
If I were you I would wait until you are out of college and see what kind of job you can land. The job market is pretty tough right now. A friend of mine has had a masters for two years and still works at barns and noble because he can't find a job anywhere else.