I also have to disagree with the trade-in value. It is a 6 year old car. That's 7% depreciation per year if the car was about $35k brand new.
According to this site, vehicle depreciation rates are 15%/year on average. If that's the case your car would be worth $13,200. These cars hold their value way better than average, but just sit back and seriously consider that and realize how HORRIBLE an investment a mass produced vehicle is.
http://www.carsdirect.com/auto-loans...reciation-rate