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Another drive/charge cycle on the ForkenSwift with the Invictas: 227 Wh/mile = 3rd best efficiency of 2009.
The tires are now back on their rightful vehicles. But before I swapped them back, I did some more comparisons this evening: coastdown testing to compare the two different sets of tires on the ForkenSwift.
This time it was on as level a road as I could reasonably find within range of the car, 30 down to 10 km/h, multiple bi-directional runs. I'll post the results later or tomorrow.
(Might be useful to start a wiki page listing coastdown values of various cars, showing tire brand, pressure, vehicle weight, ambient conditions. Might be useful as a tool to gauge how good or bad your rolling resistance is, relative to other cars.)
Also weighed them: Invicta + steel rim = 27 lbs; snow tire + steel rim = 29 lbs.
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