Rover SD1 is both the code name and eventual production name given to a series of large executive cars made by British Leyland (BL), under the Rover marque. It was made through its Specialist, Rover Triumph and Austin Rover divisions from 1976 until 1986.

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).

In 1971, Rover, at that time a part of the British Leyland (BL) group, began developing a new car to replace the P6 and the Triumph 2000/2500. The designers of both Triumph and Rover submitted plans for the new car, of which the latter was chosen. David Bache was to head the design team, inspired by exotic machinery such as the Ferrari Daytona and the late 1960s design study by Pininfarina for the BMC 1800, which also guided the design of the Citroën CX. Spen King was responsible for the engineering. The two had previously collaborated on the Range Rover. The project was first code-named RT1 (for Rover Triumph Number 1) but then soon changed to SD1 (for Specialist Division Number 1) as Rover and Triumph were put in the new "Specialist Division" of BL.

Rover or rovers stems from middle English "roven", which means move around, stray. It may refer to:

Rover was a British marque consisting of cars and (earlier) motorcycles. The brand first appeared in 1885 and dissolved in 2005. It was owned by several companies:

SD1 may refer to:

Jeremy Charles Robert Clarkson (born 11 April 1960) is an English broadcaster, journalist and writer who specialises in motoring. He is best known for his role on the BBC TV show Top Gear along with co-presenters Richard Hammond and James May. He also writes weekly columns for The Sunday Times and The Sun.

From a career as a local journalist in Northern England, Clarkson rose to public prominence as a presenter of the original format of Top Gear in 1988. Since the mid-1990s, Clarkson has become a recognised public personality, regularly appearing on British television presenting his own shows and appearing as a guest on other shows. As well as motoring, Clarkson has produced programmes and books on subjects such as history and engineering. From 1998 to 2000 he also hosted his own chat show, Clarkson.

His opinionated but humorous tongue-in-cheek writing and presenting style has often generated much public reaction to his viewpoints. His actions both privately and as a Top Gear presenter have also sometimes resulted in criticism from the media, politicians, pressure groups and the public.

Victoria "Vicki" Butler-Henderson (born (1972-02-16)16 February 1972) is a racing driver and television presenter.

Butler-Henderson was born into a racing family. Her grandfather used to race a Frazer Nash at Brooklands, her father was in the British karting team and her brother Charlie is a racing driver. She has an older sister, Charlotte, who does not race. Butler-Henderson grew up on the family farm, and was educated at the independent Perse School for Girls in Cambridge.

Butler-Henderson started racing karts at the age of 12, being overtaken by David Coulthard in her first race. She holds a car race licence as well as a power boat racing licence. After supplementing her income as a racing instructor at Silverstone Circuit, she also undertook a dual career in journalism where she worked on numerous British motoring magazines including Auto Express, What Car? and Performance Car. She was the assistant launch editor and mechanic in Max Power magazine, referred to simply as "VBH."

In 1997, she joined the BBC's flagship motoring show Top Gear. After the BBC cancelled the original show in 2001, Butler-Henderson, along with co-presenters Quentin Willson and Tiff Needell, moved to Five in 2002 to continue their work on a show now called Fifth Gear. In 2004, she presented ITV's coverage of the British Touring Car Championship, in which her brother Charlie briefly competed in 2004; and from February 2006 the ten-part series Wrecks To Riches for Discovery Real Time.