It never existed in the UK range. I believe it was proposed for last seasons range but dropped at quite an early stage in favour of the Powerspot. There was one (possibly two) knocking around at Robertsbridge as a sample, these were given away as Twitter competition prizes by GN i believe.
http://custombats.co.uk/cbforum/index.php?topic=26211.0 here's the one I got shipped over from Australia.