The same type of calculation is true with other types of loans as well. 

Here is an example of what the typical difference in interest rates might be for a 36-month car loan. 

In this example, you could save more than $100 every month just for having a better credit rating!

 

In case you were wondering, here is the same information for a 15 year home equity loan.

Having a good FICO credit score is important to other aspects of your life in addition to saving money on home and auto loans.  Here are some more reasons that you should try to improve your credit score.