This motor is driven by the Lorentz force GIF

It's essentially a coreless DC motor. I recently bought a coreless servo for the steering function in a model car. It responds and accellerates much quicker than a normal servo.

Solenoid! I learned about this just a month ago in physics 2

https://vignette.wikia.nocookie.net/metalgear/images/6/6f/MonsoonI4.png/revision/latest?cb=20131227120722

Further proof that electricians are really wizards