Looking for the best rate for your new car loan? The interest rate can save you a lot of money if you pick the right deal when looking for car loans. Using a car loan calc or or car loan payment calculator can help you evaluate the best loan for your needs. It may be a new car loan, used car loan, a pre-approved loan or refinance. Be sure to read the full product offering provided for all the terms and conditions that may offset the best rate but below you will find a simple interest rate comparison table to get started.