A few nice cheap cars images I found:
Toyota Corolla sedan
Image by bram_souffreau
PERTH - My rental car! A Toyota Corolla (automatic). With this car, I drove from Perth to Margaret River and back.
Driving in Australia is great, but you have to stay on the left side of the road. The traffic is not dense, even in a big city like Perth, Adelaide or Melbourne. I never saw a traffic jam like the one Europe has. Speed limits, cities, touristic attractions and villages are clearly indicated.