Runabouts were a popular car body style

Car body style

Automobiles' body styles are highly variable. Some body styles remain in production, while others become less common or obsolete. They may or may not correlate to a car's price, size or intended market classification. The same car model might be available in multiple body styles comprising a...

 at the beginning of the 20th Century. They were small, inexpensive, open cars. Most runabouts had just a single row of seats, providing seating for two passengers. Many also had a tonneau

Tonneau

right|thumb|260px|1903 [[Ford Model A |Ford Model A]] rear-door TonneauTonneau cover , describes a hard or soft cover used to protect unoccupied passenger seats in a convertible, roadster, or for a pickup truck bed. Hard tonneau covers open by a hinging or folding mechanism while soft covers open...

 at the rear to provide optional seating for four or five. In the vintage vehicle era, nearly half of all car models, and the majority of cars produced, were classified as runabouts.

The 1964 GM Runabout was a three wheel concept car first exhibited at Futurama II, part of the 1964 New York World's Fair

1964 New York World's Fair

The 1964/1965 New York World's Fair was the third major world's fair to be held in New York City. Hailing itself as a "universal and international" exposition, the fair's theme was "Peace Through Understanding," dedicated to "Man's Achievement on a Shrinking Globe in an Expanding Universe";...

.