The short answer is yes.
The longer answer is to ensure that you have a "SIMPLE INTEREST" loan and NOT a "Rule of 78's Precomputed" loan.
If it's simple interest, that means that the interest is calculated each month on the remaining balance. So if you pay it down faster, you automatically save money in interest.
If it's a "Rule of 78's," that means that the interest is calculated ahead of time and while you'll save money if you make the final payment before it's due, you pay the same interest during any month that you have a balance regardless of whether you've paid in advance or ahead.
Bottom line ---- pay off any loan (car or otherwise) as quickly as you can. Interest is only putting money in someone else's pocket. And, think about it, you're buying a car. It's going to go down in value every month that you own it. And, if you are paying interest on it, your money is worth less every month too. NOT good math!!!