One of my biggest bugbears when changing my car is that I lose all the navigation destination details as I cannot transfer them over.
I normally have about 20 'Favourite' locations that I lose and have to reenter and some times I lose track of the post code as it has been so long since I last used it.
Surely it would be simple enough to have an industry wide format so that all GPS systems can export / import the 'Name', 'Lat', 'Long', 'Post Code' details irrespective of the old / new model of car. That way it would not matter how an individual system actually uses the location data - they would just convert them to a usable internal format.
Every car now has USB / Bluetooth access, so you could store it on your Smartphone (or whatever) and transfer it when you were ready
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