The Scalawagons were apparently the Land of Oz's experiment with Personal Rapid Transit.
Description[]
They were well-cushioned, had eyes on their roofs (under a cap), and could obey all traffic rules (so long as someone "knocked some sense into them"), as well as serve food to the passengers. Not only could they drive along the ground, but they were also able to fly in the air.
History[]
The Wizard invented them, and they ran on Flabbergas. (The Scalawagons of Oz)