We do import those cars here... at least one of them. Holden makes the Pontiac GTO. They are manufactured in Australia; there they are marketed as the Monaro, but still built with the entire GM driveline, including all aluminum Gen III 5.7L LS1 V-8 and 6 spd manual transmission.
This is there page. As you can see, it is identical in almost every respect to the Pontiac GTO. The world make identifier on the VIN 6G2 (Australian made GM Pontiac). Pretty kick ass car, if you ask me!
John