Pity that Holden , Ford , Toyota and other that I don't know car manufacturers are closing shop in Australia.
I just have brilliant idea for the concept car they could manufacture cheaply and be the most wanted here and abroad.

Lets build light electric car like that:
1.-first flat chasis - containing battery and 4 electric motors in hub wheels. Complete power drive system , flat and low - as level of your existing car floor.
2.-on top we could now in one smooth , easy way install one of canopies of your choice:
a) sedan
b) van
c) ute
d) cabriolet ...

we could do even more then 4 if needed

How it works?
Now you could purchase a car , say at $15,000 complete power train and one of the cabin on top.
If one day you decide that you need to carry something you simply un-clip cabin, remotely drive bottom off and attach another top cabin - ute or van for example. Clip on, done.

I imagine that you don't need even to buy this extra cabins - could be rented for a day from local service station.
Same with electric battery that standard range is 100 km, but could be easy in a minute swapped at the station.

Since that purpose is mostly localized people and goods mover, not high end top speed vehicle, cost is reasonable - $15,000 but complete safety assured. Max speed 110 km/h , range 100 km. to start with. Later could be improved with progress in technology .

Since power train is reasonable simple, I could imagine also that could be easily build to extend , in length or even width if needed.
This way you could have one car as compact as possible to carry you to work place but extend later , attach full size ute cabin and do some serious material moving.
Even all 4 wheels could be also not only powered easy due to internal in wheel electric motors, but also steerable!
Both front and rear wheels could turn, depending on the speed in the same or opposite direction. This give you extra stability at the speed or allow to turn on the dime almost ( this concept is not new and was even employed already on the Moon rover)

Should we ask Holden to rethink their decisions ? Stay and save 50,000 or more jobs ?
Then as with ute original Aussie concept could lead the world in new motor car thinking ?