***UPDATE***
Metro Holden are to continue on for time being but no longer as Holden Dealers after the 31st of December 2017. Jack Torcaso (owner) released a video of his disgust with General Motors and their transition to another brand of manufacturer for the new year.
http://www.facebook.com/metroholden.adelaide/videos/803044456545331/Sign of the declining times for Holden in Australia.
Cheers,
BB.