Mugen UK have confirmed 20 Mugen RRs will be built.They will all be handbuilt in CW and VERY,VERY expensive for the Brits.
Check out the pictures and the info.

http://www.hondauk-media.co.uk/release/?release=1223

In the Car Magazine(Performance Car ) and in a recent Autocar test the Mugen was the fastest around the test tracks beating the WRX STI 330S,Ford Focus RS,GOLF GTI and Mazda MPS.