Here is an overview of British Marques... bit of trivia I guess. thanks to:
https://www.britishcarcouncil.com/revue.html:
Herbert Austin, later Sir Herbert, the former manager of the Wolseley Tool and Motor Car Company founded The Austin Motor Company in 1905
Morris was started in 1913 when bicycle manufacturer William Morris (1877-1963) turned his attention to car manufacturing.
M.G. is a British marque that traditionally has produced sports cars from 1924
Alvis cars were produced by the manufacturer Alvis Car and Engineering Company Ltd of Coventry, England from 1919 to 1967
BSA was founded in 1861 Their first prototype automobile was produced in 1907
Known as Britain's oldest marque, Daimler became the official transportation of Royalty in 1898 after the Prince of Wales, later Edward VII, was given a ride on a Daimler
Healey Motor Company Ltd was a British car company formed in 1945 by Donald Healey


Hillman was a famous British automobile marque, manufactured by the Rootes Group. It was based in Ryton-on-Dunsmore, near Coventry, England from 1907 to 1976. Before 1907 the company had built bicycles.
Humber was a British automobile marque which could date its beginnings to Thomas Humber's bicycle company founded in 1868.The first car was produced in 1898 and was a three-wheeled tricar with the first conventional four-wheeled car appearing in 1901
Jaguar Cars Limited is a British manufacturer of luxury and sports cars founded in 1922
Lanchester Motor Company ran from 1895-1955. The company was started by Frederick Lanchester, one of the most influential automobile engineers of the 19th and 20th century. The first Lanchester in 1895 was designed as a car not a horseless carriage and led to the first production cars in 1900
MORGAN MOTOR CARS Although the first 4 wheel Morgan was introduced in 1936, the first Morgan ever was produced in prototype form in 1909
Riley Cycle Company
Riley began as the Bonnick Cycle Company of Coventry, England. In 1890, William Riley Jr. purchased the company and renamed it the Riley Cycle Company. In 1900, Riley sold a single three-wheeled automobile, but the company could not yet be considered an automobile manufacturer.
Rolls-Royce is a set of companies derived from the British car and aero-engine manufacturing company founded by Henry Royce and C.S. Rolls in 1904
The Rootes Group Originally founded in Kent in 1919 by William Rootes as a car sales company
The first Rover was a tricycle manufactured by Starley & Sutton Co Three years after Starley's death in 1901, the Rover company began producing automobiles with the two-seater Rover Eight to the designs of Edmund Lewis who came from Daimler
Singer was an automobile company founded in 1905 in Coventry
The Swallow Sidecar Company was founded by William Walmsley. In 1921 he was joined by the 20 year old William Lyons. In 1926 they moved into the car coachwork business when they rebodied a Talbot. This was well received and encouraged them to move on to other cars especially the Austin 7 but also Fiats, Standards and Swifts.
SS Cars Ltd was a British car maker. It grew out of the Swallow Sidecar Company and was first registered under the new name in 1934. In 1945 the company changed its name to Jaguar Cars Ltd.
Sunbeam was a marque registered by John Marston Co. Ltd of Wolverhampton, England in 1888. The company first made bicycles, then motorcycles and cars from the late 19th century to ca. 1936
The Triumph Motor Company had its origins in 1885 when Siegfried Bettmann (1863-1951) and Moritz (Maurice) Schulte started producing Triumph bicycles in Coventry, England. From bicycles, the company branched out into making Triumph motor cycles in 1902. Bettmann was persuaded by his general manager Claude Holbrook (1886-1979) to acquire the assets of the Dawson Car Company and started producing a 1.4 litre model called the Triumph 10/20
Vanden Plas is the name of a company of coachbuilders for specialist and up-market automobile manufacturers. It originated in Belgium in 1870 as Carrosserie Vanden Plas. The company first appeared in the United Kingdom in 1906 when Métallurgique cars were imported with Vanden Plas coachwork
The Wolseley Motor Company was a British automobile manufacturer The origins of the company as an automobile brand was in about 1895-96 when 30 year old Herbert Austin, then employed as a works manager at the Wolseley Sheep Shearing Company, became interested in engines and automobiles. During the winter of 1895-96 he made his own version of a design by Léon Bollée that he had seen in Paris. Later he found that another British group had bought the rights so Austin had to come up with a design of his own. In 1895 the Wolseley Autocar No. 1 was revealed, it was a three wheeled design (one front, two rear)