High APR!
Auto dealership do look and check your credit history, and it is true that even people with bad credit are approved. They’ll be more lenient with your credit history, but they still look at your income amongst other things to determine how large of a loan you can afford.
It depends on what kind of car you’re getting, how high is the down payment you can put in, your income, your score and the type of derogatory items you have on your report.
Although people with bad credit DO get approved, this comes with a price – the interest rate will be very high, and this makes the loan very expensive.