The Rover 800 series is an executive car (E-segment in Europe) range manufactured by the Austin Rover Group subsidiary of British Leyland, and its successor the Rover Group from 1986 to 1999. It was also marketed as the Sterling in the United States. Co-developed with Honda, it was a close relative to the Honda Legend and the successor to the decade-old Rover SD1. At launch, the 2 litre versions of the 800 used two naturally aspirated 2.0 L 16-valve developments of British Leyland's stalwart O-series engine, dubbed the M series. However, in 1988 an 820 Fastback (no letter after the 820 badge), with a single carburettor version of the O series was launched for the fleet market. The M series was divided into two versions; the M16e fitted to the 820e/se, with single point injection, and the M16i which was fitted to the 820i/si with multi-point injection, i.e. 4 injectors – the engine management system derived from that used in the MG Maestro and MG Montego models. The top 2.5 litre versions (825i & Sterling) used a Honda designed V6 unit in 2.5 L capacity. Initially, only a four-door saloon body was offered; a five-door liftback/hatchback version – referred to as a fastback – became available in 1988. (Source: Wikipedia.org, CC BY-SA)