What's the farthest you have ever been from Perth in a small car?

What's the farthest you have ever been from Perth in a small car? By small I mean something like Honda Jazz, Toyota Yaris, etc. And how was your experience? For context it would be good if you could mention what time of the year? Is Perth to Adelaide doable in a small car? Ofcourse the time duration and the condition of the vehicle is of great importance when doing such long trips.

Any advice from your experience?