The interest rate on a car is often based on the credit score of the individual approved for the vehicle, but any finance company will explain to you their requirements. interest rates vary depending on an individual's situation and needs. for instance there are many dealerships that offer deals with very low down payment options, like 96 payments or less per year, which can make it much easier to afford a car. if this is not your goal then you may consider buying used cars off auction websites like ebay autos because they both save time and money in comparison to purchasing at retail price. this way not only do you avoid paying huge amounts of interest but also saving significant amounts because no insurance or registration fees will be required without making monthly payments.