I like the look of Mitsubishi's PHEV Outlander, and if i had a spare $35k laying around i'd upgrade our Forester to one. 100km per charge on electric motor means if you chuck it on charge each night, you'll never use fuel going to work and back. Plus a you an extra 500km range on the 2l petrol engine. Win, win. Going by this cheapest car to run list by RAC, it finished on top as most affordable electric, and it's a practical vehicle unlike the micro Toyota's.
I found the results interesting, worth a quick read over the list at least.
Summary:
Revealed: Australia's cheapest cars to run | Drive.com.au
Full list:
RACV advice for buying a car - new or second-hand