BMW has announced a whole slew of products it intends to showcase at the rapidly approaching Geneva Motor Show, with the biggest reveal being the first public showing of the five-passenger 6 Series Gran Coupe.But that's just the tip of the Bavarian iceberg. Another highly anticipated machine, the BMW M6 Coupe, will make its world debut in Geneva before going on sale in the U.S. in the late summer as a 2013 model. The M6 Convertible, which is a big seller for BMW in the States, will debut in April at the 2012 New York Auto Show and will go on sale shortly thereafter.
