Courtesy of BBC News and a good lesson for everybody :)
"Search giant Google has "blacklisted" German car manufacturer BMW for breaching its guidelines. Investigations by Google found that BMW's German website influenced search results to ensure top ranking when users searched for "used car". Google has now reduced BMW's page rank to zero, ensuring the company no longer appears at the top. BMW admitted using so-called "doorway pages" to boost search rankings, but denied any attempt to mislead users"
ROFL <splits his sides laughing>