• The technology, power and speed of cars is incredible, but I don't understand why we aren't able to make doing 120mph in a 40mph zone is simply impossible with geo fencing, speed limiters etc.

  • Local authorities make the data available and it is aggregated into sat nav systems. The database in my car sometimes lags a little, eg it doesn't know about a recent 20 limit on a previously 30 road but it is yet to be out by a factor of 3!

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