The General Motors K platform (commonly called the K-body) was an automobile platform

Automobile platform

An automobile platform is a shared set of common design, engineering, and production efforts, as well as major components over a number of outwardly distinct models and even types of automobiles, often from different, but related marques...

 designation used for front wheel drive Cadillac

Cadillac

Cadillac is an American luxury vehicle marque owned by General Motors . Cadillac vehicles are sold in over 50 countries and territories, but mostly in North America. Cadillac is currently the second oldest American automobile manufacturer behind fellow GM marque Buick and is among the oldest...

 models beginning in 1980. It replaced the rear wheel drive K platform

GM K platform (RWD)

The General Motors K platform was the automobile platform designation used for the rear wheel drive Cadillac Seville models from 1975 to 1979....

.

The K-body designation was used for sedans; similar coupé

Coupé

A coupé or coupe is a closed car body style , the precise definition of which varies from manufacturer to manufacturer, and over time...

 models used the nearly identical GM E platform

GM E platform

The General Motors E platform or E-Body was the automobile platform designation used for a number of personal luxury cars produced from 1963 to 2002...

. The GM G platform (FWD)

GM G platform (FWD)

The General Motors G platform automobile platform designation was used for front-wheel drive full-sized luxury cars between 1995 and 2003. It is related to the C, H, and K platforms....

 was also based on the K. Beginning in 1986 K- and E-bodies were produced at GM's high-tech Detroit/Hamtramck Assembly

Detroit/Hamtramck Assembly

Detroit/Hamtramck Assembly is a General Motors automobile factory straddling the border between Detroit and Hamtramck, Michigan. It is located about three miles from corporate headquarters and has been used for production of Chevrolet, Buick, Oldsmobile, and Cadillac products.-History:The site...

 plant. Unlike the E-body, the K designation has been exclusive to Cadillac.

The original FWD K-body Cadillac Seville

Cadillac Seville

The Cadillac Seville is a luxury-type car that was manufactured by the Cadillac division of American automaker General Motors from 1975 to 2004, as a smaller-sized top-of-the-line Cadillac...

 was shared with the downsized E-body

GM E platform

The General Motors E platform or E-Body was the automobile platform designation used for a number of personal luxury cars produced from 1963 to 2002...

 Cadillac Eldorado

Cadillac Eldorado

The 1953 Eldorado was a special-bodied, low-production convertible . It was the production version of the 1952 El Dorado "Golden Anniversary" concept car, and borrowed bumper bullets from the 1951 GM Le Sabre show car...

 beginning in 1980. In 1986, the Seville was replaced with an even smaller front wheel drive model, also given the K designation. The Seville was lengthened in 1992, and the Deville

Cadillac DeVille

The de Ville was originally a trim level and later a model of General Motors' Cadillac marque. The first car to bear the name was the 1949 Coupe de Ville, a prestige trim level of the Series 62 luxury coupe. The last model to be formally known as a de Ville was the 2005 Cadillac Deville, a...

 was moved from the GM C platform

GM C platform

The General Motors C platform was an automobile platform designation used for full sized luxury cars until 2005.-Rear wheel drive:...

 to the K platform in 1994. The K platform was updated in 1997 with improved suspension

Suspension (vehicle)

Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. Suspension systems serve a dual purpose — contributing to the car's roadholding/handling and braking for good active safety and driving pleasure, and keeping vehicle occupants...

 geometry. The Seville was replaced with the rear-wheel drive Sigma-based

GM Sigma platform

Sigma is General Motors' mid-size rear-wheel drive automobile platform. The architecture debuted in 2002 with the 2003 Cadillac CTS and is adaptable for all-wheel drive and extended wheelbase versions...

 Cadillac STS

Cadillac STS

The STS is a mid-size luxury sports sedan / executive car manufactured and sold by Cadillac. It is equipped with a six-speed automatic transmission with performance algorithm shifting and driver shift control.- Origins :...

 for 2005. The Deville's replacement, the DTS

Cadillac DTS

The Cadillac DTS is a full-size luxury sedan produced by General Motors, an American automobile company. The DTS replaced the Cadillac DeVille as General Motors' largest luxury car for the 2006 model year...

, continued on the K-body until mid-2011, when the last DTS rolled off the assembly line.

• 114.0 in wheelbase
  • 1980–1985 Cadillac Seville
    Cadillac Seville
    The Cadillac Seville is a luxury-type car that was manufactured by the Cadillac division of American automaker General Motors from 1975 to 2004, as a smaller-sized top-of-the-line Cadillac...
    
    
• 108.0 in wheelbase
  • 1986–1991 Cadillac Seville
    Cadillac Seville
    The Cadillac Seville is a luxury-type car that was manufactured by the Cadillac division of American automaker General Motors from 1975 to 2004, as a smaller-sized top-of-the-line Cadillac...
    
    
• 111.0 in wheelbase
  • 1992–1997 Cadillac Seville
    Cadillac Seville
    The Cadillac Seville is a luxury-type car that was manufactured by the Cadillac division of American automaker General Motors from 1975 to 2004, as a smaller-sized top-of-the-line Cadillac...
    
    
• 112.2 in wheelbase
  • 1998–2004 Cadillac Seville
    Cadillac Seville
    The Cadillac Seville is a luxury-type car that was manufactured by the Cadillac division of American automaker General Motors from 1975 to 2004, as a smaller-sized top-of-the-line Cadillac...
    
    
• 113.8 in wheelbase
  • 1994–1999 Cadillac Sedan Deville
    Cadillac DeVille
    The de Ville was originally a trim level and later a model of General Motors' Cadillac marque. The first car to bear the name was the 1949 Coupe de Ville, a prestige trim level of the Series 62 luxury coupe. The last model to be formally known as a de Ville was the 2005 Cadillac Deville, a...
    
    
• 115.3 in wheelbase
  • 2000–2005 Cadillac Deville
    Cadillac DeVille
    The de Ville was originally a trim level and later a model of General Motors' Cadillac marque. The first car to bear the name was the 1949 Coupe de Ville, a prestige trim level of the Series 62 luxury coupe. The last model to be formally known as a de Ville was the 2005 Cadillac Deville, a...
    
    
  • 2006–2011 Cadillac DTS
    Cadillac DTS
    The Cadillac DTS is a full-size luxury sedan produced by General Motors, an American automobile company. The DTS replaced the Cadillac DeVille as General Motors' largest luxury car for the 2006 model year...
    
    
  • 2006-2011 Buick Lucerne
    Buick Lucerne
    The Buick Lucerne is a full-size car sold by the Buick division of General Motors. Introduced at the 2005 Chicago Auto Show, the Lucerne replaced both the Park Avenue and the LeSabre for the 2006 model year, and was sold through the 2011 model year...