Originally posted by Nikon
Fake.
Lighting/shadows doesn't match the horizon or reflection on car.
Not to question your uber camera talents, but it was from Mercedes Benz 2004 Cars from the Stars Photo shoot for the 2004 MB Calender and 2004 Passenger Car screen saver, they have also appeared in Mercedes Benz Magazine.
I am trying to dig up a working link from mbusa.com but they are all 404 not founds due to age, I will see if I can find an official post from MB.