I built a set of simple models based on the three dyno coefficients that Tesla provided to the EPA and shown in post #33 above. These models are approximate and should be considered skeptically until validated with empirical data, but show a minor trend I didn't expect.



The 19" wheel/tire combination appears to have an increasingly detrimental effect at lower speeds. This trend is not obvious looking at the second graph just showing Range Lost and Consumption Increase, but is obvious when the percentages are plotted in the third graph.



If this is trend is real, I suspect it is caused by the higher rolling resistance of the 19" tires, which appears to be more dominant at slower speeds. These models assume constant speeds, no acceleration/deceleration, so the effects from the different wheel/tire rotational inertias isn't a factor. In total, this trend is a very minor, being only a few percentage points different over this range of speeds.



Again, I wouldn't focus on the specific values. They could easily be off, but I think the big trends are real.

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