With the winter in full force up here over the last couple of 4-6 weeks, lots of wind, snow and ice and sub freezing temps, my lifetime has dropped to 3.6 mi/kWh just this week. I only try to maximize my efficiency when I am concerned about reaching a destination. But, in this weather, anything over 200 miles is not guaranteed even on a full charge. Leaving my house (or a hotel) with 100% charge has gotten me to my destination with single digit % remaining and a trip efficiency of low 2.x m/kWh with a total trip of 212 miles. So, my experience this past week is that my total range in these conditions is slightly over half of the EPA rating of 426. Touring, 19" AS, glass roof some extra weight with work supplies (under 100 lbs of extra weight). March will be one year with the car and I doubt it will change significantly from 3.6 mi/kWh in the next 6 weeks but who knows. 24k miles on the car FWIW