Always know your credit score.  Score 1st will show you the path to improve your credit score, obtain credit protection and free credit scores.  

Get approved for your new car loan in less than 2 minuites.  You can be approved for your auto loan online before going to the dealership.  This will save you money because there's less haggle about financing. When you enter the car dealership you can shop with confidence and inform the salesperson that you received a car loan online.  This generally will suggest to the salesman that you have done your homework and research online.  It will also put pressure on the salesman to start at or near the dealership's best price for the vehicle of your choice. 

 Consider shopping online for your new or used car purchase.  Most times you can receive better pricing and narrow down the closest dealerships that have the vehicle that you want.  This approach will also save you a lot of time, money and gas.