Many cars including Rolls-Royce only supplied the chassis and coachbuilders did the rest.
From 1939 the coachbuilder Park Ward had been a wholly owned subsidiary of Rolls-Royce. It wasn’t until early 1946 that Rolls-Royce provided their own bodywork. When they introduced their Bentley standard steel saloon, it used components made by Pressed Steel Limited of Coventry in place of a coachbuilder's hand-formed shapes.
Useful external links The Coachbuilders Encyclopedia , an amazing site about coachbuilders, old and current.
20-Ghost Club , a club for owners of all pre-1940 Rolls-Royce motor cars.
The Rolls-Royce Foundation , organization dedicated to the preservation and promotion of the heritage of Rolls-Royce and Bentley Motorcars. They also have a museum, Rolls-Royce Foundation museum .
Barker & Co, London, UK Barker & Co was founded in 1710 and was reformed as Barker & Company (Coachbuilders) in 1905. After the 1920s they seemed unable to keep up with the use of light alloys for framing. In 1938 the company fell into receivership and its brand name and business were taken over by its long-term rival Hooper & Co . Apart from Barker supplying bodywork for Rolls-Royce, they also supplied coachwork for chassis made by Bentley, Cadillac, Daimler, Duesenberg, Mercedes-Benz, Napier, and Packard.
Rolls-Royce 25/30 Four Light Sports Saloon, 1937, Coachbuilder Barker: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce New Phantom, Pullman Limousine, 1926, Coachbuilder Barker & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce New Phantom, Sedanca de Ville & Three quarter Coupé, 1926, Coachbuilder Barker & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria [2018]
Rolls-Royce New Phantom, Three quarter Coupé, 1926, Coachbuilder Barker & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom I Fixed Head Coupé FHC, 1928, Coachbuilder Barker & Co: Rolls-Royce Museum "the World's Finest", Dornbirn, Gütle, Austria | Österreich [2018]
Rolls-Royce Phantom I Fixed Head Coupé FHC, 1928, Coachbuilder Barker & Co: Rolls-Royce Museum "the World's Finest", Dornbirn, Gütle, Austria | Österreich [2018]
Rolls-Royce Phantom I Fixed Head Coupé FHC, 1928, Coachbuilder Barker & Co: Rolls-Royce Museum "the World's Finest", Dornbirn, Gütle, Austria | Österreich [2018]
Rolls-Royce Phantom I Fixed Head Coupé FHC, 1928, Coachbuilder Barker & Co: Rolls-Royce Museum "the World's Finest", Dornbirn, Gütle, Austria | Österreich [2018]
Rolls-Royce Phantom II, Sedanca de Ville, 1933, Coachbuilder Barker & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom III Limousine, 1936, Coachbuilder Barker & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce Silver Ghost, Pullman Limousine, 1924, Coachbuilder Barker & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Caffyns Ltd, UK Caffyns was during the twenties a well known coachbuilder but is now a major car dealer. They exhibited at Olympia London from 1919 to 1930. They bodied many chassis but mainly Darracq, Wolseley, and Sunbeam. They later bought the coachbuilders Rock, Thorpe & Watson , and Maltby .
Rolls-Royce Phantom I, Allweather Cabriolet, 1928, Coachbuilder Caffyns Ltd, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Freestone & Webb, London, UK The company was founded in north-west London in 1923 by V. E. Freestone and A. J. Webb.
Rolls-Royce 20/25 Fixed Head Coupé FHC, 1934, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce 20/25 Fixed Head Coupé FHC, 1934, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce 20/25 Fixed Head Coupé FHC, 1934, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce 25/30 h.p. 3-position Drop Head Coupé DHC, 1937, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce 25/30 h.p. 3-position Drop Head Coupé DHC, 1937, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce 25/30 h.p. 3-position Drop Head Coupé DHC, 1937, Coachbuilder Freestone & Webb, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Hooper & Co, UK
Rolls-Royce Phantom I, Enclosed Drive Limousine, 1928 & Limousine, 1929, both by Hooper & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom I, Enclosed Drive Limousine, 1929, Coachbuilder Hooper & Co: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Continental, Six light Limousine, 1934, Coachbuilder Hooper & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Continental, Sports Saloon, 1932, Coachbuilder Hooper & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria [2018]
Rolls-Royce Phantom II, Brougham de Ville, 1930, Coachbuilder Hooper & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II, Enclosed Limousine, 1931, Coachbuilder Hooper & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
James Young, UK
Rolls-Royce Phantom II Continental Four light Saloon, 1933, Park Ward, UK & Fixed head Coupé, 1930, James Young, UK: Rolls-Royce Automobilmuseum, Austria | Österreich [2018]
Joseph Cockshoot & Co, UK
Rolls-Royce New Phantom, Open Touring Car, 1926, Coachbuilder Joseph Cockshoot & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Kellner Eichelbaum & Co, Berlin, Germany Can't find any info about this company. There were, though, two separate companies; Carroserie Alexis Kellner and Karosserie Eichelbaum.
The car in the image below had a body built by Erdmann & Rossi before the current one.
Rolls-Royce Phantom I, Cabriolet, 1929, Coachbuilder Kellner Eichelbaum & Co, Germany: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Le Baron, New York, USA LeBaron was a coach building company from 1924 until 1953. In the 1920s they also provided bodies for other luxury cars like Hispano-Suiza, Duesenberg, and Packard. It eventually became part of Chrysler Corporation. Also called LeBaron, Carrossiers Inc.
Rolls-Royce Phantom I, Sedanca de Ville, 1929, Coachbuilder Le Baron, New York, USA: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Louis Labourdette, Madrid, Spain
Mann Egerton & Co, UK
Rolls-Royce Phantom I, Limousine de Ville, 1928, Coachbuilder Mann Egerton & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
H. J. Mulliner, UK Wikipedia's page about H. J. Mulliner
Rolls-Royce Phantom II, Saloon with division, Coachbuilder Windover, UK & Phantom III, Enclosed Limousine by H. J. Mulliner & Co., 1937: Rolls-Royce Automobilmuseum, Dornbirn, Austria 2018]
Park Ward & Co, London, UK
Rolls-Royce Phantom II Continental Four light Saloon, 1933, Park Ward, UK & Fixed head Coupé, 1930, James Young, UK: Rolls-Royce Automobilmuseum, Austria | Österreich [2018]
Rolls-Royce Phantom II Continental, Four light Saloon, 1933, Coachbuilder Park Ward & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Continental, Sports Saloon, 1932, Coachbuilder Park Ward & Co, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Sport Saloon, 1933, Coachbuilder Park Ward & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Sport Saloon, 1933, Coachbuilder Park Ward & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Sport Saloon, 1933, Coachbuilder Park Ward & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Sport Saloon, 1933, Coachbuilder Park Ward & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom II Sport Saloon, 1933, Coachbuilder Park Ward & Co, London, UK: Rolls-Royce Museum "the World's Finest", Dornbirn, Austria | Österreich [2018]
Park Ward Coachwork, UK
Rolls-Royce Phantom I, Limousine, 1929, Coachbuilder Park Ward Coachwork, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Smith & Waddington, Sydney, Australia
Southern Motor Company, UK
Rolls-Royce Phantom I, Sports Saloon, 1929, Coachbuilder Southern Motor Company, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom I, Sports Saloon, 1929, Coachbuilder Southern Motor Company, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Thrupp & Maberly, UK
Rolls-Royce Phantom II, Enclosed Limousine, 1930, Coachbuilder Thrupp & Maberly, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom III, Enclosed Landaulette, 1937, British Royal family parade car, Coachbuilder Thrupp & Maberly, UK: Rolls-Royce Automobilmuseum Dornbirn, Austria [2018]
Weymann Motor Bodies, UK
Rolls-Royce Phantom I, Fabric Saloon, 1928, Coachbuilder Weymann Motor Bodies, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria [2018]
Windovers Ltd, UK
I. Wilkinson & Son, UK
Rolls-Royce Phantom I, Open Touring Car, 1929, Coachbuilder I. Wilkinson & Son, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]
Rolls-Royce Phantom I, Open Touring Car, 1929, Coachbuilder I. Wilkinson & Son, UK: Rolls-Royce Automobilmuseum Vonier, Dornbirn, Austria | Österreich [2018]