Well, I knew the first depreciation would be big, not this much. I think dealer would retail the car for about $59~60k, then they make an easy $7k. Maybe this dealership is trying to take advantage of me knowing that I am serious about trading the car in?

And I don't have to get a x5 but I know I'll be stressed if I keep the x3.

Well, now I learned that buying a car need some serious research and consideration of different aspects.