While that earlier update introduced new standard features and higher pricing across the range, the new reduced prices announced today are thanks to changes made to the Luxury Car Tax (LCT) this week.
Those revisions brought a $1300 increase to the LCT threshold, now set at $63,184. The threshold for 'fuel-efficient' cars, however, remains unchanged at $75,375.
For the new financial year, Porsche has cut $400 from the price of all models that list fuel consumption figures above 7.0 l/100km - the cut-off point for eligibility as a 'green' or 'fuel-efficient' car.
For some models the change effectively means a small saving on price changes introduced in May.
This means that, in the case of the entry-level Boxster (8.2 l/100km), the price drops from $105,100 (initially a $2300 increase on 2015 pricing) to $104,700 plus on-road costs.
Likewise, opting for the entry 911 Carrera Coupe (9.0 l/100km) now costs $208,200 before on-roads, down from $208,600.
The savings continue into the Panamera range, with the petrol entry model (8.4 l/100km) down from $204,600 to $204,200.
In the Cayenne range, stepping into the 9.2 l/100km base petrol model - a new variant - now costs $107,600 before on-road costs, down from the $108,000 price introduced in May.
The entry model in the new mid-sized Macan SUV range - the 6.1 l/100km S Diesel - remains unchanged at $88,000, but the 8.7 l/100km S petrol is down from $89,700 to $89,300.
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