The PM is a personal mobility vehicle that "fits like a glove" to create a feeling of unity between the driver and the vehicle. Cutting-edge vehicle-to-vehicle communications technologies are employed under the concept of "meeting, linking and hanging out together".
Looks like these Silver Crown racers converted to street use.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.