You start from scratch in terms of your loan length, but your new balance is whatever it was when you refinanced for the car.
For example, if you still owed $11,000 on your car before you refinanced but you originally owed $20,000, your refinanced car loan balance would be $11,000, not $20,000. If you originally got a 84-month loan but you refinance into a 48-month loan, you would pay that remaining $11,000 over 48 months.
Refinancing may be able to help you out—but it’s not worth it unless you’re able to get a better interest rate than your current 9.49%.