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Discussion Starter · #3 ·
Had a lesson in why in built satnav is better than Google Adroid Maps today or that other Apple product. The cars inbuilt system knows car revolution of the wheels so when it looses satellite navigation signal it knows better where it is against the map, freestanding systems jump roads and give you crap directions which become important at interchanges when you can head off in a seriously wrong direction.

I closed down Google Maps and said let's use the car system as we headed off route. I'd got the actual plot running on another device. So for rice paddies Google maps is fine, for city driving don't be a numty use the car's system it knows exactly where you are.... this has been said in the Telegraphs motoring pages in the past re the better positioning of the cars satnav via the wheel rotation sensor.
 
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