If the balance of the existing car loan is being rolled into your new loan, then the answer is no. They will pay off the balance
If the balance is not being rolled in, the answer is yes. You are still responsible for the difference.
If you are financing through the dealership, typically they roll in the new balance, but you need to make sure this is happening. If you have got some third party financing, then this is not likely happening, but again you should double check.
Answered on Sep 24th, 2012 at 2:55 PM