Quality link Immo, I have used Siemens 3 phase inverters many times at work, mainly Sinamics and Micromaster, but have used a couple of Simovert controllers too, along with some of the older DC drives such as Simoreg and Simodrives.
The new AC motors should be virtually maintenance free, older EV's used to use DC shunt motors with a phenomenal amount of torque.
I have seen many a DC motor with a drive shaft snapped because of the forces they can generate.
The good thing with modern day inverters is that you can just plug a lappy in and change the characteristics of the drive to suit, bit like a remap!
Keep us updated matey!
Sundance