Ahh, but, if you pay it off a few months early, you've paid less interest

 

One significant problem with refinancing a car you've already made payments on for two years is the term. You start to look at lower payments and before you know it you're into a slightly lower rate with lower payments, but your loan is now 2 or 3 years longer and you will pay more interest over the life of both loans.

Your existing rate is really not that bad. If you drop your rate 1% depending on your principle and term you'll save ~$5-$10 a month in interest. You can save WAY MORE than that by simply applying a little extra to principle each month and eliminating several payments at the end of your loan.

 

You're not going to really save money by re-fi'ing a car.. You'd actually better spend your time figuring out how to make more money to pay it down, transfer a portion of the loan over to a 0% credit card or something...

Also, you have to consider any processing fees and charges associated with moving the loan over to someone else or re-fi'ing it..

Paying for a car is always an uphill battle...