Just to clarify, by Aus are you referring to Austria and not Australia? In Australia the road culture is so bad that they make dramatic TV shows about it and relative Youtube channels sharing dash cam footage of bad drivers are actually source of entertainment to many.
Or their idea thereof... when I use my GPS it surprises me how low my car actually reports my speed compared to reality. It probably explains all the slow drivers in the right lane over here.
Go on the M4 though and 10 over is too slow for many!