VW Australia offer a "Volkswagen New Vehicle Extended Warranty" for a further 3 years/60,000Km (to a max of 100,000Km) after the initial 3 year new car warranty runs out.
It is an insurance policy underwritten by Allianz Insurance.
It is transferable to a new owner when you sell your car.
It is very similar to the initial warranty except it doesn't have a roadside assistance component (which is available separately at extra cost). It does allow your car to be repaired by the the selling dealer (preferred) or else the closest licenced repairer of your choice.
It is better than most "dealer" extended warranty (read the fine print on both and evaluate the differences for your individual circumstances, particularly any selling dealer-only servicing and repair requirements).
As it can be sold by any VW dealer to anyone anywhere in Australia it is worth shopping around to get the best price (a search on this forum might save you several hundred dollars).
As an interesting aside, you can also buy it for non-VWs. I recently bought it for my Skoda Octavia.
2006 T5 Transporter van 2.5 TDI 6M (boring white), 2008 Octavia vRS wagon 2.0 TFSI 6M (bright yellow)