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Aftermarket wheels

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As mentioned, forged wheels are going to be the lightest, but they're also going to be a lot more expensive. Also, the less material on the face, the lighter the wheel will be. However it's a trade off as you usually want the wheel face closed up more for aerodynamics & range efficiency, and the extra material on the face makes the wheel more heavy. I don't know if there's a specific brand out there that's the 'must have' for EV cars, but I would look into the wheels specifically designed & made for Tesla cars and see what the rating & specs are on those.

Unless you're a range weenie, having a lighter wheel & tire setup (less unsprung weight at each corner) will probably be better and give you better acceleration & braking, but when cruising at highway speeds it won't be as aerodynamic. The actual range loss may be minimal at that point.
I find it kind of fun to be a range weenie at times since I came from a performance car where I never thought of range, ever. Yet I drive my MYP like a hoon, so range sucks anyways...so its a delicate conundrum. I love this car!! =)
 
During research it seems that some of the newer rotary forged wheels are lighter then even some forged. A set up I'm looking at with a 20x10+40 is coming in at 24lbs each according to the spec chart on the manufactures official site. Price point is about $550 each. Stock 20" Inductions are around 30lbs each.

I'm going for look but also looking to save my range.
 
So what brands/models are the holy grail of EV aftermarket wheel? I'm talking about aerodynamically efficient wheels for range, but also light and strong for performance?
The EV01+ was "tested" to have the same efficiency as Geminis and ~26 lbs. I got a set to use for winter, don't have personal experience just yet.