Pontiac Assembly was a General Motors

General Motors

General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

 assembly plant located in Pontiac, Michigan

Pontiac, Michigan

Pontiac is a city in the U.S. state of Michigan named after the Ottawa Chief Pontiac, located within the Detroit metropolitan area. As of the 2010 census, the city had a total population of 59,515. It is the county seat of Oakland County...

. It served as the main facility for Pontiac Motor Division

Pontiac

Pontiac was an automobile brand that was established in 1926 as a companion make for General Motors' Oakland. Quickly overtaking its parent in popularity, it supplanted the Oakland brand entirely by 1933 and, for most of its life, became a companion make for Chevrolet. Pontiac was sold in the...

 since it was built in 1927. The plant ceased production of full-size Pontiacs after the 1980 model year, and was permanently closed on August 6, 1982. Another production line was opened in 1983 to build the Fiero

Pontiac Fiero

The Pontiac Fiero is a mid-engined sports car that was built by the Pontiac division of General Motors from 1984 to 1988. The Fiero—meaning "proud" in Italian and "wild", "fierce", or "ferocious" in Spanish—was designed by George Milidrag and Hulki Aldikacti as a Pontiac sports car...

. The old production line was reopened January 14, 1985 to build the Oldsmobile Cutlass Supreme

Oldsmobile Cutlass Supreme

The Oldsmobile Cutlass Supreme was a mid-size car produced by General Motors for the American market. It was always at the top of the Cutlass range. It began as a trim package, developed its own roofline, and eventually was mechanically divorced from the later, smaller Cutlasses.The Cutlass Supreme...

 and Buick Regal

Buick Regal

The Buick Regal is a mid-size car introduced by General Motors for the 1973 model year. North American production ended in 2004 and began again in 2011. For the 2011 model year, Buick re-introduced the Regal to the North American market, positioned as an upscale sport sedan...

, as the Lansing

Lansing Car Assembly

Lansing Car Assembly was a General Motors automobile factory in Lansing, Michigan. It contained two elements, a 1901 automobile plant in downtown Lansing, and the 1920 Durant Motors factory on Lansing's Far Westside....

 and Flint

Buick City

Buick City was a massive automobile manufacturing complex in the northwest of Flint, Michigan. Elements of the 235 acre complex dated from 1904, but it became known as Buick City in 1985. The Buick Site is still producing components for GM facilities and outside buyers. Operations ceased on the...

 plants which built them had been converted to new front-wheel-drive car lines. Chevrolet Monte Carlo

Chevrolet Monte Carlo

The Chevrolet Monte Carlo was an American-made two-door coupe introduced for model year 1970, and manufactured over six generations through model year 2007. It was marketed as a personal-luxury coupe through most of its history, with the last model version being classified as a full-sized coupe...

 production was added for 1987, and Pontiac Grand Prix

Pontiac Grand Prix

Picking up where the Pontiac Ventura model left off, the Grand Prix first appeared in the Pontiac line for 1962. It was essentially a standard Pontiac Catalina coupe with minimal outside chrome trim and a sportier interior...

production returned in October 1987. Production ended on December 11, 1987. Fiero production ended on August 16, 1988, and the plant was closed.