this post was submitted on 03 Nov 2025
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That would be a lot of unsprung weight.
Handling and ride quality are dramatically and negatively impacted by every bit of weight that is not held up by the suspension. That's why higher performance cars will have lightweight wheels. Rather than steel wheels you see on lower performance cars.
It's better to just put all the heavy drive components inboard on the chassis and run drive shafts to the wheels.
You see motors in the hubs of bicycles, because they really don't go that fast. So even if the bike has a suspension, it's not that big of a deal. Motorcycles on the other hand would need to keep any heavy parts inboard.
Steel wheels haven't been common on anything but really cheap cars for a few decades now, but in general your point holds true. There's heavier and lighter alloy wheels out there.
Still, these could be just tiny motors connected to the wheels via a short shaft on the rear especially. Instead of the huge monstrosities most EVs currently seem to use which are huge, as they also include gearing and such. Still leaves more space for battery without having to go unsprung with hub motors.