MINI Chassis Codes.
MINI's are sometimes refered to by a factory-designated chassis code. Here is a list of these codes and years and models to which they apply.
R50 - 2002-2006 MINI Cooper Hatchback
R52 - 2004-2008 MINI Cooper Convertible and MINI Cooper "S" Convertible (Supercharged)
R53 - 2002-2006 MINI Cooper "S" Hatchback (Supercharged)
R55 - 2008-Later MINI Clubman and MINI Clubman "S" (Supercharged)
R56 - 2007-Later MINI Cooper Hatchback and MINI Cooper "S" Hatchback (Turbo)
R57 - 2009-Later MINI Cooper Convertible and MINI Cooper "S" Convertible (Turbo)
R58 - 2011-Later MINI Coupe
R59 - 2012-Later MINI Roadster
R60 - 2011-Later MINI Countryman
Still to come..........
R?? - 2013-Later MINI City Car
R?? - 2013-Later MINI Hatchback (Next Generation)
R?? - 2013-Later MINI Clubman (Next Generation)
This information can be found on the web at Wikipedia. Click here for MINI information