I just traded in my 07 MKX (loaded) with 22,000 miles and last week picked up my 09 MKX pretty much loaded including the 20" wheels.
I loved the 07 and took it three times to the beach house in Gulf Shores and once to the Smokey Mountains; rides great on long trips and now I like the 09 even more; gas mileage seems better, the nav system with Sync is over the top and even has weather radar with the Sirius Travel Link.
My 07 stayed on the dealer lot exactly 2 hours before it was sold!
Love the vehicle. . . .