Rob Horn's experimental two wheel steer, two wheel drive, electric FF (built in 2001) freshly ensconced in the motorcycle museum at St Francis, Kansas in 2023. PNB See here: https://stfrancismotorcyclemuseum.org/home
NB: note the 'joystick', located between the rider's knees, for steering.
Photo: © Rob Horn
PS Spot the Easy Rider movie lookalike Harleys just behind.PNB