I've recently moved house and I'm nearer a train station (although I can't actually move my stuff since no car), but it would be very difficult to not have one at all.

Visiting my parents would be basically impossible, as well as going to friend's houses. Also I'm not sure which university I might be going to, but it might require one, and trying to run my own business will require one for posting items and such. And I can't really date if I can't pick people up. I don't feel like Melbourne is really a city where you can get away with having no car easily, unless you can contain your whole life to the inner suburbs and city.

Petrol's not too bad in mine since it's a Prius.