I think it is the other way around. From various accounts I've heard from people coming here, it's more that Australians drive slowly. There are 2 factors IMO:

I think it is the other way around. From various accounts I've heard from people coming here, it's more that Australians drive slowly. There are 2 factors IMO: * Decades of 'speed kills' advertising without nuance, and automated systems to catch perpetrators. Just wait until a double demerit weekend here in NSW - there is no reason you need to drive 85 in a 100 zone to avoid a ticket, but plenty do it. They're actually scared of that limit and keep a healthy distance from it. * Car speedometers lying to us - 10% plus 4 km/h is a significant legally allowed error rate, higher than many countries. To actually go 100, my new car reads 105. I tested this with Waze and cross-referenced against GPS dashcam videos. Most people won't. I end up passing a lot of people due to this.