ok...
going by the grille, it's a VP Commodore, however, the rear end does suggest it's a VN (the colour between the tail lights is different between the 2)
the 2 models were very similar, and many many parts interchange...
the first commodore was based on an opel omega way back in the late 70's, however, apart from looking similar, not much interchanged... they have grown separately since then, just like 2 brothers grow separately and look different, but share common traits...
to whoever said it was a ute, it's not a ute.. a ute is like an El Camino.... it's a car with a tray, much like a pickup, only usually more car height / styled....
Commodores suffer a bit in the eyes of many in Australia because they are very common, and often modified poorly, like this one... but, there are plenty of good examples out there too....