Melbourne is also an example of the split between wealthy gentrified tram-serviced inner suburbs and car-dependant outer suburbia.
Bundoora, Preston, and Box Hill to the north, Surrey Hills to the East, Carnegie to the South. (I don't think anything goes West further than Maribyrnong?)
All suburbs, more than 10km from the city, full of people who work 9 to 5 in unglamorous jobs.
Sure, it's cheaper further out, in places that will take over 45 minutes to commute from... but that's the case everywhere in the world, as far as I know. And it's not like Melbourne doesn't have a bus system to rival Sydney's.
Even now many of these areas contain a lot of less wealthy people, jump on any tram and you'll see just about every demographic represented.