At what point can we just return to 1990s wheel sizes, add the motor to the wheel, and have the same unsprung mass as we have with today's gigantic wheels?
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That teardrop-shaped EV [Ed: Aptera] was going to use the Elaph ones but I think there was some issue with producing enough of them or something like that.
Protean wheels will be on the new Renault 5 Turbo3E which will be a high performance, expensive, short production run.
They make it "easy" to electrify a petrol car and there's a few Sandy Munro videos about the Protean wheels where they test drive a Mercedes converted to and EV with them. Munro was contracted to find ways to get the manufacturing cost down without reducing the durability too much.
You might think that YASA motors would be extra useful for IWM applications where lightness is important but there are other constraints such as durability and fitting in the electronics and it might be essential to have a completely custom design. I don't really know but I do think they should be working together in an ideal world.
They are apparently getting the cost down to where we might start to see them in more affordable vehicles: https://www.proteanelectric.com/protean-showcasing-iwm-techn...