The Rover K-series engine is a series of internal combustion engines built by Powertrain Ltd, a sister company of MG Rover. The engine was a straight-four cylinder built in two forms, SOHC and DOHC, ranging from 1.1 to 1.8 L; 67.9 to 109.6 cu in.

MG Rover Group was a British carmaker that existed between 2000 and 2005. It was the last domestically owned mass-production car manufacturer in the British motor industry. The company was formed when BMW sold the car-making and engine manufacturing assets of the original Rover Group to Phoenix Venture Holdings in 2000.