Out of all the popular cities in Australia, Coolangatta is the cheapest city to rent a car in at just RM 56/day. Renting a car in Coolangatta is 41% cheaper than renting one in Hobart where the per day rate is around RM 93. Other fairly inexpensive cities in Australia to get a rental car in are: Brisbane (RM 61/day), Melbourne (RM 64/day), and Sydney (RM 78/day). While these cities typically have cheaper prices than the rest of the country, travellers looking to rent a car in Melbourne should expect to spend around RM 64/day on their transportation. The most popular city to rent a car in Australia is Melbourne.