Mmmmmmm. Wouldn't this make a nice Grand Prix?

The HSV is the high-po sibling to the Commodore SS-V, available down under, and the revisions at this point may be limited to what you can gather from the photos, specifically the "look-at-me" body kit and the plus-one or plus-two wheel upgrades.

Holden HSV unintentionally uncovered - Autoblog