Flat Rock Assembly Plant

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Flat Rock Assembly Plant
Former namesMichigan Casting Center (1972-1981)
Mazda Motor Manufacturing USA (1987–1992)
AutoAlliance International (1992-2012)
General information
Address1 International Drive
Town or cityFlat Rock, Michigan
CountryUnited States of America
OpenedJanuary 1972
OwnerFord Motor Company

Flat Rock Assembly Plant, formerly known as Ford's Michigan Casting Center (MCC) (1972–81), Mazda Motor Manufacturing USA (1987–92) and AutoAlliance International (1992-2012), is a Ford Motor Company assembly plant located at 1 International Drive in Flat Rock, Michigan in Metro Detroit. The plant currently consists of 2,900,000 square feet (270,000 m2) of production space and employs 1,685 hourly workers represented by the United Auto Workers Local 3000, as well as 140 salaried workers. The plant currently produces the Ford Mustang coupe and the revived Lincoln Continental.


Casting plant, 1973

Following three years of work and the largest single investment by Ford, the Michigan Casting Center (MCC) opened in January 1972, at the time one of the most technologically advanced casting facilities in the world.[1] Despite the sizable capital investment, frequent union labor problems and work injuries[2] and declining demand for the V8 engine blocks produced there led to the facility's closure in 1981.[3][4]

Mazda Motor Corporation started construction of a new building on the site of the Michigan Casting Center in 1985 and cars started production at Mazda Motor Manufacturing USA in September 1987 with the Mazda MX-6 and Ford Probe coupes.[5] In 1991 the plant had 3,600 employees, including 250 Japanese employees.[6]

Ford repurchased a 50% share in the plant on April 15, 1992, and it officially became a joint-venture and was renamed AutoAlliance International on July 1, 1992.[7] The plant began production of all models of the Mazda 626 sold in America starting in 1993. The Ford Contour-derived Mercury Cougar was produced at the plant from 1998 to 2002. Production of North American Mazda 6 began in the 2003 model year, followed by the Ford Mustang starting in 2005.

The last Mazda 6 rolled off the line on Friday, August 24, 2012, with Mazda discontinuing production on American soil, effectively ending the 20 year joint-venture between Mazda and Ford. Mazda moved production of the Mazda 6 back to the Hofu factory in Japan and opened a new factory in Salamanca, Mexico to build the Mazda 2 and Mazda 3 subcompact and compact cars.

On September 10, 2012, Ford Motor Company re-took full management control of the plant, renaming it the Ford Flat Rock Assembly Plant, and confirming $555 million in investments designed to retool the plant for the production of the 2013 Ford Fusion midsize sedan.[8]

On July 15, 2015, Ford confirmed that the new 2017 Lincoln Continental sedan would be produced at the Flat Rock plant starting in 2016.[9]

Products made



  1. ^ "Ford Opens a Giant Casting Centre". Schenectady Gazette. 20 January 1972. Retrieved 11 April 2013.
  2. ^ "Detroit plant". Windsor Star. 1 November 1973. Retrieved 11 April 2013.
  3. ^ "http://www.nytimes.com/1981/09/15/business/ford-will-close-unit-in-flat-rock.html". New York Times. 15 September 1981. Retrieved 11 April 2013. External link in |title= (help)
  4. ^ "Flat Rock Mayor Hopeful". The Argus-Press. 3 December 1984. Retrieved 11 April 2013.
  5. ^ Manji, James F. (1 June 1988). "Building cars with Mazda quality. (Mazda Motor Manufacturing USA Corp.)". Automation. Penton Business Media, Inc. Retrieved 11 April 2013.
  6. ^ Cohen, Sharon. "Metamorphosis in Motown." Associated Press at The Ledger. Thursday December 26, 1991. p. 7C. Retrieved from Google News (95 of 121) on November 19, 2013.
  7. ^ "North American All-New Mazda6 Production Begins at AutoAlliance International". Mazda. 23 July 2008. Retrieved 11 April 2013.
  8. ^ a b http://media.ford.com/article_display.cfm?article_id=37067
  9. ^ "Lincoln Continental to be made at Ford Flat Rock plant". 15 July 2015.
  10. ^ HENKEL, KARL (9 April 2013). "Ford begins hiring 1,400 for Flat Rock plant From The Detroit News: http://www.detroitnews.com/article/20130409/AUTO0102/304090436#ixzz2Q94XQmvn". Detroit News. Retrieved 11 April 2013. External link in |title= (help)
  11. ^ "New Lincoln Continetal will be Michigan made". Retrieved 16 July 2015.
  12. ^ Pope, Byron (10 September 2012). "Ford Expects Fusion Output to Exceed Mazda6 at Flat Rock". Wards Auto. Retrieved 11 April 2013.

Further reading

Coordinates: 42°6′24.6054″N 83°14′52.3752″W / 42.106834833°N 83.247882000°W / 42.106834833; -83.247882000