Out of all the popular cities in Australia, Adelaide is the cheapest city to rent a car in at just ₹ 1,148/day. Renting a car in Adelaide is 57% cheaper than renting one in Brisbane where the per day rate is around ₹ 2,668. Other fairly inexpensive cities in Australia to get a rental car in are: Sydney (₹ 1,170/day), Coolangatta (₹ 1,229/day), and Melbourne (₹ 1,301/day). While these cities typically have cheaper prices than the rest of the country, travellers looking to rent a car in Sydney should expect to spend around ₹ 1,170/day on their transportation. The most popular city to rent a car in Australia is Sydney.