Well, there's two blue book quotes...one for a dealership prepared car and one for private party. Personally I think blue book is a bunch of insurance industry backed nonsense. Cars don't loose that much value that quickly, but hey who am I to question. At this point it's just a self-fulfilling prophecy. If your car was uncommonly maintained, or you just put in a new transmission or something, I would pay a few thousand more than blue book. Otherwise, I'd be offering less than blue book.