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Behold The Hyundai Uni Wheel. Transportation May Never Be The Same
(cleantechnica.com)
This is a most excellent place for technology news and articles.
Almost no vehicles have unsprung motors anyway.
Because it throws things out of balance a lot of the time and causes damage to the components.
My 50cc scooter does! And I guess technically my electric bicycle does too, because it's got a rear wheel hub motor and the wheel is on its own suspension independent of the frame.
...That's about all I can think of off the top of my head, actually.