Actually this car is completely different from the G8. They have different wheel bases and lengths. The G8 is a step up bigger than the G6 about the size of an H Body, but the Park Avenue is slightly bigger than a BMW 7 series in length and wheelbase. Remember that the G8 is built off the Commodor and this Park Avenue is built of the Holden Statesman and are sold side by side in Australia, because they are very different cars.
That is one NICE ride!!!!!! Omg, I wanna go get one and bring it back