The Mercury Comet is an automobile

Automobile

An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

 produced by the Mercury

Mercury (automobile)

Mercury was an automobile marque of the Ford Motor Company launched in 1938 by Edsel Ford, son of Henry Ford, to market entry-level luxury cars slotted between Ford-branded regular models and Lincoln-branded luxury vehicles, similar to General Motors' Buick brand, and Chrysler's namesake brand...

 division of the Ford Motor Company

Ford Motor Company

Ford Motor Company is an American multinational automaker based in Dearborn, Michigan, a suburb of Detroit. The automaker was founded by Henry Ford and incorporated on June 16, 1903. In addition to the Ford and Lincoln brands, Ford also owns a small stake in Mazda in Japan and Aston Martin in the UK...

 from 1960–1969 and 1971-1977 — variously as either a compact or an intermediate car.

The Comet was based on the compact Ford Falcon and later the Ford Maverick. As a Mercury, early Comets received better grade interior trim than concurrent Falcons, and a slightly longer wheelbase.
The Comet was originally planned as an Edsel

Edsel

The Edsel was an automobile manufactured by the Ford Motor Company during the 1958, 1959, and 1960 model years. The Edsel never gained popularity with contemporary American car buyers and sold poorly. Consequently, the Ford Motor Company lost millions of dollars on the Edsel's development,...

 model.