If you know you have really bad credit, all you need to focus on is the car loan, not the car. You can’t be picky about what car you buy because you will have a hard enough time just finding someone who will finance you. Get your credit score up first and shop around for the best interest rate for an auto loan. It still may be really high and you still may get a bad credit auto loan. But by getting your auto loan and paying on time, every month, you will be able to establish a better credit history so next time you can buy the car you want. Unfortunately, this is a situation that comes with having bad credit. It keeps you from buying what you really want.
