Important Trade-in question

[GABRIEL]

I purchase my 3.0L X5 on July last year, my options include: Navigation, rear air bags, original BMW head rest dvd, mp3 cd changer, sport package and premium package with only 1330 miles, but now I’m interested on the new X5 because of the 3rd row seat option. The dealer here in Germany said they will give 15 % less than the US trade-in value, I paid $ 48,000.00 for it new, my question is shut I trade it for a new one. Have include copy of the military price here in Germany, Thanks in advance for the suggestions.