Asked and got the reply from Tire Rack, hope it helps.
The GTP 19x8.5 is $329 each, and the 19x9.5 is $369 subject to sales tax and shipping fees. I am more than happy to sell them but obviously cannot guarantee the fitment on BMW 2009 E83 X3. It does ring a bell that non US models have smaller hub bores and can use wheels that their US spec counterparts can’t.
Breyton does have the Race GTS for $249 and the GTS-R for $319 in 18" for X3.
Currently, we can only ship these within the United States.