New high-speed motor offers improved power density for use in electric vehicles

 https://techxplore.com/news/2022-09-high-speed-motor-power-density-electric.html

"over 100,000 revolutions per minute... peak power density 7kW per kilogram... scale and optimize to provide power and speed in a given range—for example, a 200kW motor with a maximum speed of around 18,000 rpm that perfectly suits EV applications. If an electric vehicle manufacturer, like Tesla, wanted to use this motor then I believe it would only take around six to 12 months to modify it based on their specifications"