I read about this on the train today, I don't know if anybody else has heard about it. It seems that Google has banned bmw.de for cheating a bit with it's keywords.
More here.
Google blogscoped said:From what it looks like, the German websites of car maker BMW have been kicked out of the Google index. BMW.de at this time has a PageRank of 0. A search for BMW Germany, which only days ago yielded BMW.de as a top result, now doesn’t show any sign of BMW.de at all. Instead, BMW.com – BMW’s international site – is on top for this search.
More here.