Matt Cutts anounced recently on his blog that Google would put more focus on the non english part of their serps. A few weeks ago it was automobile.de, one of the larger german used car market places that was removed. Now it's BMW.
This is simply a warning: If you are still using black hat SEO in Europe modify your pages while its not too late.
It was about time this happened. Techniques that where of no use in english serps and can be considered as obsolute are still working in german and other european language serps.