It doesn't help you now but they are developing electrical vehicles with solar in the roof, that could be a good option for a sunny place like Australia.
My dad drives a Toyota Hybrid Auris, which runs on fuel, so you wouldn't need to plug it in, but also generates electricity while it drives and uses that too, meaning your fuel efficiency is very good. Maybe that is an option to not be dependent on having to charge?
I heard about that and am interested...but when is the big question...and what happens when it rains? Lol.
My company car is hybrid (combustion/electric) and it's good, also a Toyota. It's a good option.