The MG 6 is a mid-size car that has been produced by MG Motor from 2010 onwards. It is derived from the Roewe 550, hence being distantly related to the Rover 75, sharing its front subframe. It was initially announced in April 2009 at the Shanghai Auto Show as a hatchback and in October 2010 at Shanghai Expo as a 4-door saloon model.
The five-door hatchback, known as the MG 6 GT, went on sale in the United Kingdom in May 2011, the saloon, known as the MG 6 Magnette, went on sale on 16 July 2011. A diesel model joined the range at the end of 2012.
The first Thai-assembled car rolled off the assembly line on 4 June 2014, with a potential for 5,000 cars per annum.
Like the Roewe 550, some of the development and styling of the MG 6 was done at the MG Motor UK Technical Centre. The MG 6 commenced production in China in 2010 and Partially Knocked Down form at Longbridge, UK from 13 April 2011. Since 2013, the MG 3 supermini also undergoes some limited final assembly at the same factory.