Household Treasury said $10-15k was the price range, so looking at second hand on car sales plenty of Corollas which seem to be the default choice in other OzBargain forum posts.
I had early 2000s Corolla previously but was fairly bland base model and not overly fun to drive. Not that I'll drive new car all that much, mainly to train and possibly pick up kids.
Is there a reason why Mazdas eg 3 never come up as an option?
Kia Cerato also falls into the price range for 2-3 year old models, which would still have many years of warranty left.
Hyundai i30 does too but friend had a older Hyundai that seemed to have odd failures like drivers door not unlocking, which makes me hesitant.
Originally I thought Corolla Hybrid would be a good choice, but second hand there was only handful and mostly around $25k and they start at around $30k new. I'll hit up salary packaging provider to see if that worthwhile option also.
Depending on the age of the kids, you could consider the Prius C. Like a Yaris in size, with the hybrid 1.5L engine