The Holden Monaro 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...

 that was produced by GM Holden Ltd

Holden

GM Holden Ltd is an automaker that operates in Australia, based in Port Melbourne, Victoria. The company was founded in 1856 as a saddlery manufacturer. In 1908 it moved into the automotive field, before becoming a subsidiary of the U.S.-based General Motors in 1931...

, an Australian subsidiary of General Motors, between 1968 and 1977 and between 2001 and 2005. Since 1968, three generations of the Monaro have been produced.
Named after the Monaro region in New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

 (although pronounced differently), the Monaro was introduced in July 1968 as a two-door pillarless hardtop coupe available in three models: the basic Monaro coupe, Monaro 'GTS' coupe and Monaro 'GTS 327' coupe.