Depending on your credit score you should be able to get better financing than 6,99% in a reputable garage. Garages and dealership have negociated interest rates with banks so you do not pay the same amount you would pay yourself going for a loan at your local bank. Usually they look at your credit score and they have a chart to offert you a interest based on it, they can choose to give you a lower interest rate and reduce the commission the bank is giving them or even not take any comission an offer you the greatest option to get your sales.
For example my last car I was offered 4% (5 is years ago) in an independent garage and now while shopping the Kia dealership was offering me 3,69% through there financing (not KIA corporate finance).
I would never put a car at 6,99% especially not for 72 months, this is very risky since the car will depreciate much faster than what you will be paying!