Complex sentence: By the start of 2000 MG was part of the MG Rover Group which entered receivership in 2005 and the assets and the MG brand were purchased by Nanjing Automobile Group (which merged into SAIC in 2008) for 53 million.
Split into simpler sentences: By the start of 2000 MG was part of the MG Rover Group, which entered receivership in 2005. The assets and MG brand were purchased by Nanjing Automobile Group (which merged into SAIC in 2008) for 53 million.