Everyday somebody with a poor credit rating manages to get an auto loan, so why can’t you? Have a look online I’m pretty sure you can find one in next to no time! Some sites will even shop the rate around for you and bring you multiple offers.
Before you take out any car loan or in fact even if you buy a car with your own money you must make sure that there is no existing finance outstanding on the car that you’re buying (you want a clean and clear title). You must also make sure that the mileage shown on the odometer is true, and check whether or not the vehicle is stolen (this can easily be done by pulling a CarFax car history report).
You can go to one of the many companies like Equifax, Car Fax and even your state DMV to get them to write a report about the car that you are wanting to buy, and personally I think it’s money well spent (all you need is the complete VIN #).
Banks will generally only want to lend money to purchase cars that are under 5 years old (especially credit unions), this is due to the reliability and also the resale value of cars over this age. It’s important to get a 2 year warranty of some form as this will help to bring down the rates of your auto car loan.