From Yahoo news:
In a move that analysts say indicates a problem that still needs a solution, Google has removed BMW’s German Web site from its index for violating Google’s guidelines against trying to manipulate search results.
The move was first reported by Google employee Matt Cutts in a posting to his blog on Saturday. He said BMW.de had been removed last week because certain pages on the site would show up one way when the search engine visited the page but when a Web user opened the page, a redirect mechanism would display a completely different page.
Matt’s post is here.
Ricoh is also a violator. You Have Been Warned.