The Rover P6 debuted in 1963, initially replacing the Rover P4, and eventually the Rover P5. Built over a decade, the P6 offered its customers an accessible 4-door sedan or wagon body style. The P6 also offered a four-cylinder, six-cylinder, and even a V8 engine, along with manual and automatic transmissions powering the rear wheels. The P6 was segmented into two series (generations). Series I included the 2000 and 3500 models, and Series II was the 2200. In 1977 during challenging economic times under British Leyland ownership, Rover discontinued the P6 in favor of a fresh, innovative design with the Rover SD1.