RE:2023 - Sue...her ideas were rejected as “tried before.” That sentiment also applies to the CD.
Mazda introduced a coil switching motor a decade ago in its Demio EV. It abandoned the idea after an initial run of 100 cars.
A bad choice!
https://www.greencarcongress.com/2012/07/demioev-20120706.html
"Motor. The Demio EV uses a permanent magnet three-phase alternating current synchronous electric motor employing a coil-switching system. Conventional electric motors provide either high torque in low revolutions, or low torque at high revolutions. The coil switching system enables the motor to have both of these characteristics in one motor by switching the number of coils according to the rotational speeds, Mazda says."