I know this advice is unsolicited and might easily be inapplicable to your circumstances, but I'm going to offer it anyway. I don't think you should start your adult life in debt over a depreciating asset. Buy an older used (but reliable) car like a Corolla or Civic, spending much as you can afford to pay cash for. Of that $600/month that you'd be paying on the loan, keep 100 for maintenance & licensing, and put the other 500 in the bank, buying a 1-year certificate of deposit every 6 months when you've accumulated 3 grand.
In 4 years you'll have enough dough to buy a brand new Prius. Keep putting that 500 in the bank each month...pay yourself, earn interest instead of paying out interest. In another 4 years, between the cash and the equity left in the Prius, you'll have enough to buy an even fancier vehicle (should you so desire) for cash. Do that your whole life.
Debt should only be for growth opportunities that you'd have little chance of entering into without a loan: real estate, starting a business, etc.
Now I will go back to minding my own business. Should you choose to buy the Prius, you will love it.
rob