My favorites would be the already mentioned flxible clippers and a little known white semi trailer bus. Which had the driver nicely separated from the screaming school kids in his own prime mover. Another fantastically crazy Aussie bus is the landliner. Two ford v8's one in the back and one in the front, and it was basically a trailer with a hydraulically steered and controlled prime mover under the front of it ! Awesome ! But apparently quite dangerous too due to the steering being a lot vague and the engines not being exactly synced up , causing the rear axles to sheer off from time to time. Only a couple made in the 40's then they were outlawed. Look them up!