If you are in a credit union, check with them about getting a car loan. They'll tell you how much they can loan and for how long. If you don't belong to a credit union, maybe check with your bank?

Another idea, if you don't need it right away, check your credit score with one of the big three and make sure that everything they are basing your score on is accurate. Also, look up (google?) and see how long it would take to improve your credit score; I think it depends on what financial sin you have committed.