Can confirm

yo, i feel u on the range drop. honestly, it's kinda disappointing how much those 20s kill the efficiency on the rz. i tried switching to the Enkei Vulcan 18x8 Flow Formed Wheels but they didnt give me the aero boost i wanted. basically, i guess Fast Wheels EV01(+) 18-inch Aero Wheels are a better bet for pure range cuz of the inserts. the enkeis look better but the fast wheels are LITERALLY made for ev efficiency. gl!!

> I’m considering downsizing to lighter, more aerodynamic 18s to squeeze out extra miles.

In my experience, downsizing is literally the smartest move you can make for an EV like the RZ. I've spent years messing with wheel weights and aero covers on various builds, and the physics don't lie.

For your situation, I'd look at it this way: flow-formed wheels vs. true aero-discs. Basically, flow-formed wheels like some of the lighter BBS or Vossen options are great for reducing unsprung weight, which helps with stop-and-go efficiency. But honestly, if you're doing highway miles, the aero shape matters WAY more than the weight.

I’d suggest looking for something with a flatter face or even those modular wheels where you can add plastic inserts. It’s a balance, cuz some "aero" wheels look kinda cheap, but brands like Rotiform have some designs that keep that high-end Lexus vibe without killing your range. Ngl, I’d stick with a 18x7.5 or 18x8 to keep the contact patch reasonable too. Definitely worth the swap!! 👍

Noted!

i actually decided to go the diy route and swap the wheels myself in my garage because those shop fees are basically daylight robbery and i wanted to learn more about how the car works honestly it was way more of a project than i expected but *totally* worth it just to see the range creep up a bit on my dashboard - finding a jack that could handle the ev weight was actually pretty stressful
- i spent way too long figuring out how to swap the pressure sensors over without breaking them
- cleaning the mounting surface took forever but i wanted it to be perfect for efficiency im still really new to this whole ev thing and i was super nervous about messing up the aero but doing it myself gave me a way better feel for how much weight im actually saving with the new setup... do you guys think doing it yourself is better or is it just safer to let a pro handle the sensors and everything?? i feel like i saved some cash but it took me all afternoon haha

Big if true