I came across this on ebay this morning:
http://www.ebay.co.uk/itm/2812284937...84.m1423.l2649
I'm pretty sure it's a clone but I found it a bit strange.
It looks to be a bastardised version of the XI and Ultimate. Strangely in red!
I've heard of Tamiya's and Xrays being cloned but not something like the Sakura.