Try towing a van with an EV, page-32

It's only in its "infancy" if you don't understand basic engineering - which many in Australia don't - they have had no exposure to any kind of engineering (Electrical or Mechanical) - a result of the lack of Industry here.
Unfortunately that Includes most of the oxygen thieves in Canberra.
Keep it simple for the Muppets - if you buy a new (expensive) car knowing the prime mover will have to be changed out after around 5 years use - would you still buy that car ?
That's where you are at with this stupid idea - fine for those who have plenty of money to splash - totally illogical for the masses.