The MG ZS is a sports family car that was built by MG Rover from 2001 until 2005. The ZS is essentially a tuned version of the Rover 45. The 45 in turn is a facelifted version of the Rover 400 which was launched in hatchback form in 1995 and saloon form in 1996, which in turn was derived from the Honda Domani.

MG is a British automotive marque founded by Cecil Kimber in the 1920s, and M.G. Car Company Limited was the British sports car manufacturer that made the marque famous. Best known for its open two-seater sports cars, MG also produced saloons and coupés, with engines up to three litres in size and 3.5 L in the case of the MGB GT V8. The marque is now owned by Chinese state-owned automaker SAIC Motor.