Trade in value ! What do u guys think ?

[E70x5]

Thinking of upgrading my '09 3.0 to '12 x5d, I'm getting very competitive pricing ($12k off) but getting killed on my trade. They are offering me $32,500 on my trade :

2009*x5 3.0 alpine white w/ black Nevada leather*
-34k miles
-tech pkg
-prem pkg
-cold weather
-comfort acc
-3rd row
-4.8 20" wheels (oe 214) original 18" wheels/tires avail*
-wheel arches for the 20" sport
-4.8 square v8 exhaust tips
-immaculate condition (no scratches or dents)
-running boards

I see them on cars.com going for $42-46k, what do guys think a fair amount for the trade is ? I was looking more like $35-38k . . .