3 different places, 3 different times, same car (I think)

Below are a couple of shots taken at Calder in 1979 when the Ikara was released. Tony G. brought this black sports along. He had built it while working at the factory.

This shot was taken in Sydney by an exotic car spotter, not sure when, but the car lived in NSW at this stage.

Now, here it is back in Victoria in the custodianship of Tony B. at this year's recent Show'n'tell.

I have a feeling this is the same car. Please feel free to correct me. Not too sure about the chassis number so can't work from that.