If part of the licensing system is driver training eg., at high speed, how to control spin-outs, etc like they do in Finland in the TG episode 140kmh would be safe.
The problem is always money. Of course the govt is not going to choose to lose money.
We should start up a political party promising higher speed limits and driver training, or get one of us elected as State Roads Minister On one hand most of the elderly and nanny-state embracers will be against it, on the other hand most reasonable people, not to mention every car enthusiast, will be for it. That would be something for me to vote for, instead of taking off my Saturday morning to randomly tick boxes for local MPs I have no idea about whenever election time comes around.