I am thinking about buying an 04 g35x, I have a friend whose lease is up this month and will be turning it in to the dealer. The car has 36k miles on it and the payoff is about $21,500. Black on black leather, No nav. Is it worth grabbing this car for the payoff amount? Also anyone have any idea what infiniti is charging for used car interest rates 6.5/7? or can they usually do better than that?