Your Prado has twice the fuel capacity that an average ICE car has . Sounds like you have range anxiety with your Prado .
How often do you drive where there is 1400 klms between fuel stops ?
Average commute in Australia ? Less than 60klms per day .
Average distance travelled by Australian cars ? 10- 15 k . That's 41klms per day max . Unless you're crossing the Simpson regularly , why the hell would you drive around with 140 litres of fuel in your car ? Just dragging around extra weight for no reason .
And I wouldn't use the excuse of travelling in the outback either . Electricity supplies are much closer together than fuel stations in most cases .
Sounds like you enjoy bragging how big your fuel tank is .