I am curious to see how they work, as well. They are the updated version of the tires that
Chang Ho Kim used to get 118MPG in an EcoModder economy run a while back. The Nokian Hakka R2 is claimed to be lower RR than the original R's and are better winter tires.
I ran the GPS yesterday, and the odometer is
still reading too high mileage: 57.6 vs 57.1 miles. That is slightly less than a 0.9% too high reading. i will continue the calibration measurement today.
That means that the Leaf SL / SV tires that are 25.5" in diameter (vs these Hakka R2's with a 25.7") are also reading too many miles.