yes, it happens in many places. Except, Australia has just under 30 million people in it, where the US has 350 million. Additionally, the US is where the car industry and car-centric city planning emerged, and it did so within the context of a culture with not only a settler-colonial incentive to dominate space, but also a significant population of other oppressed groups who posed a threat to white supremacy, like African Americans. Even though both the US and Australia engage in imperialism, the US has a much more expansive and pervasive imperial presence globally. Consequently, suburban sprawl was as much an element of white supremacy within the metropole as it was a military necessity once WWII concluded and the US state became anxious about decentralizing its manufacturing industries.

So, even though car dependency exists in other settler-colonial states, like Australia or Canada, the context and conditions under which that car dependency is created and functions is substantially different.