Official photos of the W212 were leaked on the internet on 9 December 2009 ahead of its 2009 Geneva Motor Show unveiling .
The W212 replaced the W211 in 2009 ( as a 2010 model ) .
Official photos of the W212 were leaked on the internet on 9 December 2009 ahead of W212 's 2009 Geneva Motor Show unveiling .
The W212 replaced the W211 in 2009 ( as a 2010 model ) .