Speedo vs GPS

I should have included more of the text to show that I was responding to comments regarding the 5km odometer test strips commonly seen in NSW.

Quote:

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Originally Posted by AK83

I then used many of the 5klm roadside markers to each town/locality to continue confirmation of the GPS.
Again, over a couple of thousand klms, and at least 20-30 different sets of those 5klm distance markers both in Vic, but mainly in NSW, the GPS metering was confirmed.
My conclusion is that those 5klm distance markers are accurate enough to gauge the car's odometer accuracy too.

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