Oh, and the buyback letter says that I need a payoff quote and a applicable per diem. I see the payoff quote on the Hyundai finance site, but I don't see where or what the per diem is? Anyone know where to find that? Also, anyone have advice for negotiating the mileage deduction? If they go by P29, I went two get that done two full months after reducing my charge, so about 2500 miles less than went I brought it in.