The Dark Matter motor looks like an improvement, but the motors in Electric Cars are already pretty good.

I'm looking forward to improved batteries instead. Google AI Overview says:

"Solid-state batteries (SSBs) are poised to revolutionize EVs by replacing liquid electrolytes with solid ones, promising double the energy density for longer range, much faster charging (minutes!), reduced fire risk, and lighter weight, with major players like Toyota, Nissan, Mercedes, and Factorial aiming for mass production by the late 2020s..."