Not just yet...
These vehicles are been built at the Holden plant in Elizabeth, South Australia.
Witch is actually a Pontiac G8 GT with a Chevy Badge :)
http://www.topspeed.com/cars/pontiac/2010-pontiac-g8-gxp-ar76845.html
I’m lucky enough to own one of the 1,800 GXPs sold in the US.