The big addition in V27 is new 3-D view similar to system offered by Acura and Lexus. And while this new software doesn’t quite match either in terms of full functionality, it goes a long way in improving the MINI’s DVD based system.
You can read all about it and grab the file below at mdsbrain.com:
[ Nav OS V27 has been released ] mdsbrain.com
(Update: You can find the ISO version here.)