Fun fact, the induction motor was invented by Nikola Tesla. The first electric automobile that I know of that used one was GM's EV1 but induction motors powered most Tesla vehicles until the Model 3. The issue with brushless permanent magnet motors that Tesla was seeking to overcome is when you have powerful magnets but don't run the motor at high power the fixed magnets providing the B magnetic field are disproportionally powerful to the lower power being send through the windings leading to sub-optimal operation for automotive application where you are very rarely at maximum power outputs. This is better explained by former Tesla Engineer Wally Rippel in a 2007 blog post here ( https://www.tesla.com/blog/induction-versus-dc-brushless-motors ). Tesla redesigned the motor in the Model 3 to a brushless permanent magnet system called IPM-SynRM that uses a mind-bending method to overcome the B field magnetic efficiency losses described by Wally if you care to go down that rabbit hole on Youtube.

The problem with free energy is patents.

Thanks to Daishi for the info on motor competition and to Wally Rippel for exposition of all the factors that need to be considered. Still, the key phrase for the description of this new motor is that a "wireless transmitter sends power to the rotor". Thus we find a simplified description of the new motor: take an old-fashioned DC brush motor, then replace the brushes with a wireless transmitter and a rectifier.

Awesome. Now if they can just make the batteries cheaper and with longer range I might be able to afford an electric vehicle.

"Rare earth metals" are only rare because of politics. The biggest mine WAS in Nevada, but was closed by the Greenies.
Mahle has no motor, only a prototype. According to Musk, it's 200 times harder to go from a prototype BEV to production. But 2.5 years? For just a motor? Is Mahle soliciting investors? Do they have the patients?

That is fantastic! It makes so much sense. Cannot wait to see a demo!

Interesting historical insight, there Daishi. It seems to me that the key development of Mahale's system is they tweek the amount of power used to induce magnetism in the rotor windings. My guess is that this improves efficiency by allowing them to better "match" induced magnetism in the rotor windings to the total motor power output required at any given moment.

How does this compare with Turntide's new switched reluctance motor, a very simple construction with inexpensive metals but precise computer controls? It claims energy savings of beyond 50%.

this type of motor is already in production and use commercially by a company named Turntide Technologies although their thrust has been to invade the commercial hvac space. Nothing new here except that mahle is concentrating on ev space

I can imagine in the future most every electric motor will be made this way. Dumping the rare Earths is a big deal.