It seems to be powered by a relatively simple rear hub in the single rear wheel, and can probably achieve speeds in the 20 km/h range while holding one passenger and possibly some cargo.

For a compact EV crossover, Donut Lab thinks its tech could reduce the number of components in a powertrain by three-quarters, saving weight and assembly time—and therefore money. For a semi-truck, ...

Orbis offers novel options for dialing in the torque, cost, and performance of hub-mounted motors to suit any electric car or plug-in hybrid.

The Pi Hub Development Kit is described by maker Yoganandham as ... a GPS module, relays, a servo motor, a buzzer, gyroscope module, various LEDs, buttons and even an ultrasonic sensor.