The C-1 design vision showcased an enclosed two-wheeled vehicle self-balanced by two single-gimbal control moment gyroscopes, to be powered by lithium iron phosphate batteries. Design specifications indicated that it could hold a second passenger, though no model or pictures other than computer renderings showed more than single-passenger capacity.
The computer renderings of a two passenger model indicate that the tight space would likely not be suitable for long trips, as the area behind the driver’s seat is very limited, in a semi-reclined position, with legs straddling the front seat.
Similar to a motorcycle, the original C-1 design has two wheels, but uses a small steering wheel instead of handlebars. Direct-drive in-hub motors in both wheels were designed to provide a high amount of torque, stability and traction control, while allowing for the body form to be about half the size of a car. The alpha prototype shows both wheels without direct drive and only a single person capacity, indicating that the design may be undergoing changes.
See photos below…