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It is early with only about 250 miles on the tires so far but I can say they are crazy efficient. I averaged (lifetime) 221 Wh/mi with the Pilot 4 tires. These are giving me 214 Wh/mi so far. I reset trip when I had the tires installed.
I put a set on my Model 3 today. Extremely quiet and smooth so far. Not as good on corners as the Michelin Pilot 4 though. I’m looking forward to the efficiency gains (hopefully).