http://reviews.cnet.com/2300-10863_7...tag=mncol;page

Source CNET

The G8 already has a significant fan base, and can show a number of points toward future collector status. First of all, it is a rebadged Holden Commodore, built in Australia, which gives it an exotic flair. It is also marks the end of the Pontiac brand. And in GXP form, it is a modern muscle car, boasting a 6.2-liter V-8, the LS3 engine also used in the Chevrolet Corvette.