I'm with Ron, don't take out a car loan. Buy something cheap you can pay for with cash. IF we can't talk you out of being in debt, stay with a loan term of 3 years or less, and that you should be able to pay off early (1-2 years). Also, I would suggest unless you have a really good job (which you probably don't since you want a car loan), stick with a payment of $300 or less (remember 3 year loan of less), and pay as much as you possibly can so you pay it off early...
The bank is a better place to get a loan though, interest rate will be cheaper and they are probably less likely to try and rip you off (although any car loan is a ripoff)
Nothing like borrowing money on something that will be worth alot less than what you paid 6 months down the road...