Rover SD1

Rover SD1 is both the code name and eventual production name given to a series of large executive cars built by British Leyland (BL), under the Rover marque. It was produced through its Specialist, Rover Triumph and Austin Rover divisions from 1976 until 1986, when it was replaced by the Rover 800. The SD1 was marketed under various names including Rover 3500, Rover 2300 and Rover Vitesse.

In "SD1", the "SD" refers to "Specialist Division" and "1" is the first car to come from the in-house design team. The range is sometimes wrongly referred to as "SDi" ("i" is commonly used in car nomenclature to identify fuel injection).