The best advice that you can ever get is to really consider the overall ideas that you have in mind for a Car Loan before you actually take the loan.  If you have some idea on exactly how much you can afford, and the type of car that you are interested in, you will find that it is much easier for you to be able to work out the finer details such as interest rates, payments and even the length of the loan.  These are all smaller issues that can be worked out carefully if you take advantage of the ability to quickly and easily work out the small details after the larger aspects are resolved you will be much happier with the overall results.