The latest model of the Leaf is sold here with a 40kW battery pack, an indicative range of 270kms, and costs about $53,000. There are various ways of predicting range and some overseas reports say up to 380kms.
People travel an average of only 80kms a day, so that should be plenty of range for average usage.
The Leaf, not Tesla, is the world's top-selling EV and has been sold overseas for some time, so there should be plenty of good used ones around, particularly in Japan where taxes encourage rapid turnover of vehicles, to be imported into Oz when say 2-3 years old and with at least 80% of battery life left. The crowd in the story have the batteries tested before deciding to buy.
Another way to think of it is as a mobile battery pack, which can be plugged into the house and store power generated by solar during the day to run the house at night.
I can't afford one now we're retired, but I can see an argument being made for working people.
Nissan LEAF - Electric car of new-generation | Nissan Australia