SAPOLs new highway design
So apparently SAPOL will be adding up to 30 of these SV6 Commodores to their fleet over the next 18 months. They are most likely to be spotted within 100km of Adelaide.
Here's where I found out about it: www.lcpdfr.com/topic/41710-south-australia-police-have-released-a-new-fleet-of-vehicles/
NOTE: The texture shown in this screenshot is still a work in progress but it will be released soon, maybe with a suitable uniform...It depends on what people want.