Jesus, how heavy is the stock wheel/tire combo on the EvoX? Also, one thing to consider is that most lightweight aftermarket combos are going to be wider than stock. 9-10" wheels wont help your aero much.
That said, yes, anytime the velocity of the car is changing, rotational inertia is working against you. You will never recover all of it by coasting so lowering the amount of inertia stored in the wheel/tire/brake combo would be beneficial.
I'd like to see someone do an ABA test with the same tires/wheel specs but somehow make one combo much heavier... weld a 10lb weight to each wheel or something.
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