From Car Loan Wiki

How can you get a car with no credit? If you don't have any credit and want to get an auto loan you need to have a good job with a steady income. It's not impossible to get approved for an auto loan if you have no credit, but it is difficult. If you do not have a very good job, or your income isn't steady you will most likely need to have a co-signer to get approved for a car loan. If you need to apply by yourself, you might want to look into ways to build your credit.