There was a green one advertied (QOM-114) a few weeks ago.
There is also now another green one, SVX-000, that was advertised in yesterdays Sydney Morning Herald - asking price is a bit high for the k's though!
Australia only ever got a black leather interior - Japan got beige, black, grey and also that two-tone that you described. I think the US also got the same range.
The triple toneis not my favourite BUT the middle colour (silver, not the lower half grey) was available as a full body colour - looks brilliant!! If I ended up getting a triple tone I was going to respray the roof and lower body part so it became an overall silver
James