feixingyuan
MS LR, MSM/White, 21's, FSD, RN114418 10/28/2021
I'm NOT a smart man (FACT); I'll keep it simple. My opinion for me - S 19s - FUGLY!! S 21s - Arachnids & Michelin's ( I LIKE). ALL things considered, I am happy with my decision (for me); no regrets. Happy Hour Time now (somewhere). Later...Here's one observation that makes me think aero isn't as big of a factor as weight: if you look at the Model 3 order page, the 18'' aero wheels look a whole lot different than the 19'' sport wheels, but range does not change when switching between the two. Weight is similar, with the aero 23lbs and the sport 25lbs. Also the moment of inertia difference going from 18 to 19 is smaller than going from 19 to 21 as moment is proportional to radius squared.
All that to say... the Model 3 scenario shows the same range between two tire choices where the "only" difference is the shape of the wheel. Hence why I don't think range diffs between our Model S tire choices is driven by the aerodynamic-ness of the wheel morphology.