The The Pussycar Automodule (and, yes, that's really what it was called) was designed by Jean Pierre Ponthieu in the 1970s and was created as a promotional vehicle. Described as "The Car of the Year 2000," its rear wheel was powered by a 250cc single cylinder engine. The vehicle could turn 180 degrees, drive sideways, and even increase its height with hydraulics.
I'm not sure why it was called what it was called, but apparently the car was too high maintenance to catch on. Not long after its creation... the Pussycar was licked.