When we were on our European trip, our tour guide told me since EU is established and ppl move freely within the EU, most accidents happened on the motorway was cos some poor old bugger from the less advantaged part of the EU was driving his rattling old Lada in the left/fast lane (they drive on the other side of the road than here) and get rammed up from behind by those Porsche/Audis/BMWs/Mercs...
our bus was always on the 1st (right) or middle lanes doing around 130km/h, and often we have cars thundering by on our left at 160km/h, with occasionally super ones like the RS4 or Porsche goes ballistic probably over 250km/h no worries.
apparently the Bracks government might use this example to enforce another thousand of speed cameras in Victoria.