Parents of boys in the the 4-6 age range: Australian TV shows you recommend?

Spare the "don't let them watch TV" comments, it's a treat from time to time leave it alone. What I am after is some quality Australian kids shows (animated or otherwise) that would entertain kids older than young toddlers (too old for Wiggles and such). Bluey is the obvious one and gets airtime, as well as Kangaroo Beach, but my boys are really into vehicles, cars and trucks. Im sick of the American accent from Blaze and Paw Patrol, it's annoying and so strong it's started to creep into my kids vernacular.

Anyway, Australian shows for young boys please.

Edit: thanks guys for all the great suggestions!