if anything, gold coast is more like las vegas, but either way they're both very different. las vegas doesn't even have a beach, just a lot of sand! i've heard london being compared to new york, but being called "new york but more exciting and with much friendlier people." so basically it's nothing like new york?
personally, i don't think there are any two cities that have so many similarities as to give a similar vibe. different people, different cultures, different histories, it all has its effects. there can obviously be some similarities, but not enough to make them "wannabes" or anything that similar.