I'm reading the links provided and the articles keep saying "speedometer can be high, odometer is probably accurate." I have my doubts.
Depending on which vehicle I take to work, the mileage is either 16.4, 16.6, or 16.9 miles over the exact same route, with the fairly-new tires inflated to exactly the maximum pressure printed on the sidewall. If Google Maps can be believed, 16.4 miles is the correct distance.
2017 Leaf S
OpenEVSE P50-D WiFi Kit