If I'm not mistaken, the rear of VE and VF Commodores look nearly the same. The difference was in the front and inside (what they call the Holden IQ System, and dualmode climate control, electronic stability control and so on).
That's a 2009 VE Omega (Omega is the basic trim level of the Commodore with ONLY 3.0litre V6 ). Commodore comes with a dozen or so trim levels. Highest being the SSV with the 6.0 litre V8 Engine .