Oyster Gold is pretty rare. I believe it's only a one year color. These cars are fun, solid and in my opinion, $13,000 for an 07 with that low miles is a good deal. Offer what you want, but don't let it get away from you if you really want it. I have an 04 with $31,000 miles on it and I wouldn't sell it for for much less that $13,000 either. The TMV for these cars varies but I'd say a range for a good to excellent Crossfire is about $11,000 to $15000 mileage and other factors dependant. I did a quick review on Edmunds and dealer retail was about $12,800. Trade in was around $8,900. An offer somewhere in between, depending on the other facters (1 owner, etc. etc.) would likely work depending on how motivated they are.