And that is exactly why, when planning a trip using ABetterRoutePlanner, I always make sure I check the "Avoid Rural Australia " box along with toll roads and ferries.
what i am trying to tell you is that the driving computer is very/good accurate and can usually be relied on. nevermind that with the model 3 you have a 4.5% buffer and usually the computer underreads the true SOC by around 2% on a full discharge. i.e. if you drive from 100% to 3% you actually go up to 5-6% when stopping.