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Automobiles and Automobiling (1900–1940): Drawings by Pierre Dumont

1901 Mercedes 35 HP - Illustrated by Pierre Dumont
1901 Mercedes 35 HP - Illustrated by Pierre Dumont
1902 De Dietrich 16 HP - Illustrated by Pierre Dumont
1902 De Dietrich 16 HP - Illustrated by Pierre Dumont
1902 Napier Gordon Bennett 40 HP - Illustrated by Pierre Dumont
1902 Napier Gordon Bennett 40 HP - Illustrated by Pierre Dumont
1904 Fiat 24/32 HP - Illustrated by Pierre Dumont
1904 Fiat 24/32 HP - Illustrated by Pierre Dumont
1906 Locomobile 'Old 16' - Illustrated by Pierre Dumont
1906 Locomobile 'Old 16' - Illustrated by Pierre Dumont
1906 Renault GP 90 HP - Illustrated by Pierre Dumont
1906 Renault GP 90 HP - Illustrated by Pierre Dumont
1907 Fiat GP 130 HP - Illustrated by Pierre Dumont
1907 Fiat GP 130 HP - Illustrated by Pierre Dumont
1907 Mercedes 120 HP GP - Illustrated by Pierre Dumont
1907 Mercedes 120 HP GP - Illustrated by Pierre Dumont
1908–1909 Rolls-Royce 40/50 HP Silver Ghost Barker body Cabrio-Landaulet - Illustrated by Pierre Dumont
1908–1909 Rolls-Royce 40/50 HP Silver Ghost Barker body Cabrio-Landaulet - Illustrated by Pierre Dumont
1908 Austin 100 HP GP - Illustrated by Pierre Dumont
1908 Austin 100 HP GP - Illustrated by Pierre Dumont
1908 Hotchkiss 40/50 HP - Illustrated by Pierre Dumont
1908 Hotchkiss 40/50 HP - Illustrated by Pierre Dumont
1908 Itala 100 HP GP - Illustrated by Pierre Dumont
1908 Itala 100 HP GP - Illustrated by Pierre Dumont
1908 Mercedes 70 HP - Illustrated by Pierre Dumont
1908 Mercedes 70 HP - Illustrated by Pierre Dumont
1908 Panhard et Levassor 16/18 HP - Illustrated by Pierre Dumont
1908 Panhard et Levassor 16/18 HP - Illustrated by Pierre Dumont
1908 Renault 50 HP - Illustrated by Pierre Dumont
1908 Renault 50 HP - Illustrated by Pierre Dumont
1909 Lanchester 28 HP - Illustrated by Pierre Dumont
1909 Lanchester 28 HP - Illustrated by Pierre Dumont
1910–1911 Berliet - Illustrated by Pierre Dumont
1910–1911 Berliet - Illustrated by Pierre Dumont
1911 Austin 18/24 HP - Illustrated by Pierre Dumont
1911 Austin 18/24 HP - Illustrated by Pierre Dumont
1911–1912 Clement Bayard 8 HP - Illustrated by Pierre Dumont
1911–1912 Clement Bayard 8 HP - Illustrated by Pierre Dumont
1911 Delaunay-Belleville - Illustrated by Pierre Dumont
1911 Delaunay-Belleville - Illustrated by Pierre Dumont
1911 Fiat 35/50 HP 'Obus' - Illustrated by Pierre Dumont
1911 Fiat 35/50 HP 'Obus' - Illustrated by Pierre Dumont
1911 Grégoire 15/22 HP - Illustrated by Pierre Dumont
1911 Grégoire 15/22 HP - Illustrated by Pierre Dumont
1911 Siddeley-Deasy 18/24 HP - Illustrated by Pierre Dumont
1911 Siddeley-Deasy 18/24 HP - Illustrated by Pierre Dumont
1911 Simplex 50 HP - Illustrated by Pierre Dumont
1911 Simplex 50 HP - Illustrated by Pierre Dumont
1912 Peugeot GP - Illustrated by Pierre Dumont
1912 Peugeot GP - Illustrated by Pierre Dumont
1912 SPA Sport 25 HP - Illustrated by Pierre Dumont
1912 SPA Sport 25 HP - Illustrated by Pierre Dumont
1913–1914 Vauxhall Prince Henry - Illustrated by Pierre Dumont
1913–1914 Vauxhall Prince Henry - Illustrated by Pierre Dumont
1913 Alfa 20/30 HP Castagna - Illustrated by Pierre Dumont
1913 Alfa 20/30 HP Castagna - Illustrated by Pierre Dumont
1913 Bugatti 'Black Bess' - Illustrated by Pierre Dumont
1913 Bugatti 'Black Bess' - Illustrated by Pierre Dumont
1913 Delage Grand Prix - Illustrated by Pierre Dumont
1913 Delage Grand Prix - Illustrated by Pierre Dumont
1913 Hispano-Suiza Alfonso - Illustrated by Pierre Dumont
1913 Hispano-Suiza Alfonso - Illustrated by Pierre Dumont
1913 Mercer Raceabout - Illustrated by Pierre Dumont
1913 Mercer Raceabout - Illustrated by Pierre Dumont
1913 Peugeot Bebe - Illustrated by Pierre Dumont
1913 Peugeot Bebe - Illustrated by Pierre Dumont
1913 Peugeot GP - Illustrated by Pierre Dumont
1913 Peugeot GP - Illustrated by Pierre Dumont
1914–1920 Piccard-Pictet Grand Prix - Illustrated by Pierre Dumont
1914–1920 Piccard-Pictet Grand Prix - Illustrated by Pierre Dumont
1914 Mercedes Grand Prix - llustrated by Pierre Dumont
1914 Mercedes Grand Prix - llustrated by Pierre Dumont
1914 Panhard et Levassor Sport Labourdette 'Skiff' Body - Illustrated by Pierre Dumont
1914 Panhard et Levassor Sport Labourdette 'Skiff' Body - Illustrated by Pierre Dumont
1914 Renault 40 HP - Illustrated by Pierre Dumont
1914 Renault 40 HP - Illustrated by Pierre Dumont
1915–1922 Mercer Raceabout 22/70 HP - Illustrated by Pierre Dumont
1915–1922 Mercer Raceabout 22/70 HP - Illustrated by Pierre Dumont
1916 Packard Twin Six - Illustrated by Pierre Dumont
1916 Packard Twin Six - Illustrated by Pierre Dumont
1918 Crane-Simplex 46 HP - Illustrated by Pierre Dumont
1918 Crane-Simplex 46 HP - Illustrated by Pierre Dumont
1920 Ceirano 15/20 HP - Illustrated by Pierre Dumont
1920 Ceirano 15/20 HP - Illustrated by Pierre Dumont
1920 Napier 40/50 HP - Illustrated by Pierre Dumont
1920 Napier 40/50 HP - Illustrated by Pierre Dumont
1921–1929 Renault 45 HP - Illustrated by Pierre Dumont
1921–1929 Renault 45 HP - Illustrated by Pierre Dumont
1921 Bentley 3-Litre - Illustrated by Pierre Dumont
1921 Bentley 3-Litre - Illustrated by Pierre Dumont
1921 Darracq V-8 - Illustrated by Pierre Dumont
1921 Darracq V-8 - Illustrated by Pierre Dumont
1921 Elizalde 50/60 HP - Illustrated by Pierre Dumont
1921 Elizalde 50/60 HP - Illustrated by Pierre Dumont
1921 Farman 40 HP - Illustrated by Pierre Dumont
1921 Farman 40 HP - Illustrated by Pierre Dumont
1921 G.N. Alias Salmson - Illustrated by Pierre Dumont
1921 G.N. Alias Salmson - Illustrated by Pierre Dumont
1921 Hispano-Suiza 37.2 HP - Illustrated by Pierre Dumont
1921 Hispano-Suiza 37.2 HP - Illustrated by Pierre Dumont
1921 Stutz Bearcat - Illustrated by Pierre Dumont
1921 Stutz Bearcat - Illustrated by Pierre Dumont
1922–1923 Rolland Pilain GP - Illustrated by Pierre Dumont
1922–1923 Rolland Pilain GP - Illustrated by Pierre Dumont
1922 Super Fiat V-12 - Illustrated by Pierre Dumont
1922 Super Fiat V-12 - Illustrated by Pierre Dumont
1923–1924 Peugeot 18 CV - Illustrated by Pierre Dumont
1923–1924 Peugeot 18 CV - Illustrated by Pierre Dumont
1923 Cadillac Series 63 V-8 - Illustrated by Pierre Dumont
1923 Cadillac Series 63 V-8 - Illustrated by Pierre Dumont
1923–1924 Rolls-Royce Silver Ghost - Illustrated by Pierre Dumont
1923–1924 Rolls-Royce Silver Ghost - Illustrated by Pierre Dumont
1923 Voisin 22/30 - Illustrated by Pierre Dumont
1923 Voisin 22/30 - Illustrated by Pierre Dumont
1924–1926 Lorraine-Dietrich Le Mans - Illustrated by Pierre Dumont
1924–1926 Lorraine-Dietrich Le Mans - Illustrated by Pierre Dumont
1924–1930 Bugatti Type 35 - Illustrated by Pierre Dumont
1924–1930 Bugatti Type 35 - Illustrated by Pierre Dumont
1924 Alfa Romeo P2 Grand Prix - Illustrated by Pierre Dumont
1924 Alfa Romeo P2 Grand Prix - Illustrated by Pierre Dumont
1924 Alvis 12/50 HP - Illustrated by Pierre Dumont
1924 Alvis 12/50 HP - Illustrated by Pierre Dumont
1924 Hispano-Suiza 45 HP Boulogne - Illustrated by Pierre Dumont
1924 Hispano-Suiza 45 HP Boulogne - Illustrated by Pierre Dumont
1924 Panhard 40/50 HP Labourdette 'Skiff-Cab' Body- Illustrated by Pierre Dumont
1924 Panhard 40/50 HP Labourdette 'Skiff-Cab' Body- Illustrated by Pierre Dumont
1924 Riley 11/40 HP Redwing - Illustrated by Pierre Dumont
1924 Riley 11/40 HP Redwing - Illustrated by Pierre Dumont
1925–1932 Panhard et Levassor - Illustrated by Pierre Dumont
1925–1932 Panhard et Levassor - Illustrated by Pierre Dumont
1925 Ballot 2 LTS - Illustrated by Pierre Dumont
1925 Ballot 2 LTS - Illustrated by Pierre Dumont
1925 Cadillac V-8 Don Lee Coachworks - Illustrated by Pierre Dumont
1925 Cadillac V-8 Don Lee Coachworks - Illustrated by Pierre Dumont
1925 Voisin 22/30 HP - Illustrated by Pierre Dumont
1925 Voisin 22/30 HP - Illustrated by Pierre Dumont
1925 Amilcar CGS - Illustrated by Pierre Dumont
1925 Amilcar CGS - Illustrated by Pierre Dumont
1925 Chenard-Walcker 'Tank' - Illustrated by Pierre Dumont
1925 Chenard-Walcker 'Tank' - Illustrated by Pierre Dumont
1926 Daimler 25/85 HP - Illustrated by Pierre Dumont
1926 Daimler 25/85 HP - Illustrated by Pierre Dumont
1926 Lancia Lambda - Illustrated by Pierre Dumont
1926 Lancia Lambda - Illustrated by Pierre Dumont
1926 Renault Saloon - Illustrated by Pierre Dumont
1926 Renault Saloon - Illustrated by Pierre Dumont
1926 Rolls-Royce Phantom I 40/50 HP - Illustrated by Pierre Dumont
1926 Rolls-Royce Phantom I 40/50 HP - Illustrated by Pierre Dumont
1926 Sunbeam - Illustrated by Pierre Dumont
1926 Sunbeam - Illustrated by Pierre Dumont
1926 Voisin - Illustrated by Pierre Dumont
1926 Voisin - Illustrated by Pierre Dumont
1927 A.C. Montlhery - Illustrated by Pierre Dumont
1927 A.C. Montlhery - Illustrated by Pierre Dumont
1927 Austro-Daimler ADM 19/100 HP - Illustrated by Pierre Dumont
1927 Austro-Daimler ADM 19/100 HP - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Coupé Napoleon - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Coupé Napoleon - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Esders Roadster - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Esders Roadster - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Weymann Body Coupé - Illustrated by Pierre Dumont
1927–1933 Bugatti Type 41 (Royale) - Weymann Body Coupé - Illustrated by Pierre Dumont
1927 Bugatti Type 43 - Illustrated by Pierre Dumont
1927 Bugatti Type 43 - Illustrated by Pierre Dumont
1927 Buick 20/60 HP - Illustrated by Pierre Dumont
1927 Buick 20/60 HP - Illustrated by Pierre Dumont
1927 Excelsior Albert I - Illustrated by Pierre Dumont
1927 Excelsior Albert I - Illustrated by Pierre Dumont
1927 Isotta Fraschini Tipo 8A Spinto Castagna - Illustrated by Pierre Dumont
1927 Isotta Fraschini Tipo 8A Spinto Castagna - Illustrated by Pierre Dumont
1927 Minerva 32 HP Hibbard and Darrin Phaeton - Illustrated by Pierre Dumont
1927 Minerva 32 HP Hibbard and Darrin Phaeton - Illustrated by Pierre Dumont
1927 Vauxhall 30/98 OE - Illustrated by Pierre Dumont
1927 Vauxhall 30/98 OE - Illustrated by Pierre Dumont
1928 Cadillac V-8 Sports Phaeton - Illustrated by Pierre Dumont
1928 Cadillac V-8 Sports Phaeton - Illustrated by Pierre Dumont
1928 Mercedes-Benz SS 38/250 HP Hibbard and Darrin Convertible - Illustrated by Pierre Dumont
1928 Mercedes-Benz SS 38/250 HP Hibbard and Darrin Convertible - Illustrated by Pierre Dumont
1928 Packard Model 443 Torpedo Phaeton - Illustrated by Pierre Dumont
1928 Packard Model 443 Torpedo Phaeton - Illustrated by Pierre Dumont
1928 Rolls-Royce Phantom I 40/50 HP Barker Body Touring - Illustrated by Pierre Dumont
1928 Rolls-Royce Phantom I 40/50 HP Barker Body Touring - Illustrated by Pierre Dumont
1929–1930 Duesenberg Model J Letourneur et Marchand fixed-head coupé - Illustrated by Pierre Dumont
1929–1930 Duesenberg Model J Letourneur et Marchand fixed-head coupé - Illustrated by Pierre Dumont
1929–1930 Bentley 4½-Litre Supercharged - Illustrated by Pierre Dumont
1929–1930 Bentley 4½-Litre Supercharged - Illustrated by Pierre Dumont
1929 DuPont Model G Speedster - Illustrated by Pierre Dumont
1929 DuPont Model G Speedster - Illustrated by Pierre Dumont
1929 Mercedes-Benz 38/250 SSK - Illustrated by Pierre Dumont
1929 Mercedes-Benz 38/250 SSK - Illustrated by Pierre Dumont
1930/1931 Alfa Romeo Tipo 6C-1750 Supercharged - Illustrated by Pierre Dumont
1930/1931 Alfa Romeo Tipo 6C-1750 Supercharged - Illustrated by Pierre Dumont
1930 Cord L29 - Illustrated by Pierre Dumont
1930 Cord L29 - Illustrated by Pierre Dumont
1930 MG Mark III Tigress - Illustrated by Pierre Dumont
1930 MG Mark III Tigress - Illustrated by Pierre Dumont
1930 Packard Model 734 Speedster - Illustrated by Pierre Dumont
1930 Packard Model 734 Speedster - Illustrated by Pierre Dumont
1930 Pierce-Arrow Model B - Illustrated by Pierre Dumont
1930 Pierce-Arrow Model B - Illustrated by Pierre Dumont
1931 Mercedes-Benz SSKL 7.1 Litres - Illustrated by Pierre Dumont
1931 Mercedes-Benz SSKL 7.1 Litres - Illustrated by Pierre Dumont
1932 Bugatti Type 55 Grand Sport 2.3 Litres Supercharged - Illustrated by Pierre Dumont
1932 Bugatti Type 55 Grand Sport 2.3 Litres Supercharged - Illustrated by Pierre Dumont
1932 Chrysler Imperial Le Baron Phaeton - Illustrated by Pierre Dumont
1932 Chrysler Imperial Le Baron Phaeton - Illustrated by Pierre Dumont
1932 Hispano-Suiza V-12 - Illustrated by Pierre Dumont
1932 Hispano-Suiza V-12 - Illustrated by Pierre Dumont
1932 Lincoln KB V-12 Le Baron Coupé - Illustrated by Pierre Dumont
1932 Lincoln KB V-12 Le Baron Coupé - Illustrated by Pierre Dumont
1932 S.S. (Standard Swallow) 1 - Illustrated by Pierre Dumont
1932 S.S. (Standard Swallow) 1 - Illustrated by Pierre Dumont
1932 Stutz DV-32 - Illustrated by Pierre Dumont
1932 Stutz DV-32 - Illustrated by Pierre Dumont
1933 Aston Martin Le Mans - Illustrated by Pierre Dumont
1933 Aston Martin Le Mans - Illustrated by Pierre Dumont
1933 Pierce-Arrow V-12 'Silver-Arrow' - Illustrated by Pierre Dumont
1933 Pierce-Arrow V-12 'Silver-Arrow' - Illustrated by Pierre Dumont
1934 Bugatti Type 57 - Illustrated by Pierre Dumont
1934 Bugatti Type 57 - Illustrated by Pierre Dumont
1934 Chrysler Airflow - Illustrated by Pierre Dumont
1934 Chrysler Airflow - Illustrated by Pierre Dumont
1934 Hispano Suiza V-12 Coupé de Ville - Illustrated by Pierre Dumont
1934 Hispano Suiza V-12 Coupé de Ville - Illustrated by Pierre Dumont
1934 Riley MPH - Illustrated by Pierre Dumont
1934 Riley MPH - Illustrated by Pierre Dumont
1934 Studebaker Land Cruiser - Illustrated by Pierre Dumont
1934 Studebaker Land Cruiser - Illustrated by Pierre Dumont
1935–1939 Rolls-Royce Phantom III Franay Sedanca de Ville - Illustrated by Pierre Dumont
1935–1939 Rolls-Royce Phantom III Franay Sedanca de Ville - Illustrated by Pierre Dumont
1936 Auburn Speedster - Illustrated by Pierre Dumont
1936 Auburn Speedster - Illustrated by Pierre Dumont
1936 Duesenberg SJ Supercharged Roadster - Illustrated by Pierre Dumont
1936 Duesenberg SJ Supercharged Roadster - Illustrated by Pierre Dumont
1937 BMW Type 327 - Illustrated by Pierre Dumont
1937 BMW Type 327 - Illustrated by Pierre Dumont
1937 Cord Model 812 - Illustrated by Pierre Dumont
1937 Cord Model 812 - Illustrated by Pierre Dumont
1937 Lagonda LG 45 Rapide - Illustrated by Pierre Dumont
1937 Lagonda LG 45 Rapide - Illustrated by Pierre Dumont
1937 Mercedes-Benz 540 K - Illustrated by Pierre Dumont
1937 Mercedes-Benz 540 K - Illustrated by Pierre Dumont
1937 S.S. 100 - Illustrated by Pierre Dumont
1937 S.S. 100 - Illustrated by Pierre Dumont
1938 Bugatti Type 57 SC - Illustrated by Pierre Dumont
1938 Bugatti Type 57 SC - Illustrated by Pierre Dumont
1938 Delahaye Type 165 V-12 Figoni et Falaschi - Illustrated by Pierre Dumont
1938 Delahaye Type 165 V-12 Figoni et Falaschi - Illustrated by Pierre Dumont
1938–1939 Talbot Lago S.S. Figoni et Falaschi - Illustrated by Pierre Dumont
1938–1939 Talbot Lago S.S. Figoni et Falaschi - Illustrated by Pierre Dumont
1939 S.S. Jaguar - Illustrated by Pierre Dumont
1939 S.S. Jaguar - Illustrated by Pierre Dumont
1939–1940 Packard Type 180 Darrin Coupé de Ville - Illustrated by Pierre Dumont
1939–1940 Packard Type 180 Darrin Coupé de Ville - Illustrated by Pierre Dumont
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Born in Rouen in 1920, Pierre Dumont entered the Academy of Fine Arts of his birthplace in 1936. From 1941, during the occupation and the propaganda war, he tried his luck in Paris in the advertisement of cars. In 1946, he was recruited for the “Revue Technique Automobile” (RTA) as head of the drawing department.

His graphic works were regularly published in different car publications, especially in “L’Automobile”, in several publicities for magazines and in publicity catalogues (Citroën, Rosengart, Panhard, but also Radiomatic and the carburator firm Weber). In 1968 he was the founder and the first president of the Citroën Club of France. In 1969, Pierre Dumont joined the editorial staff of “Fanatique de l’Automobile”, created by Serge Pozzoli. He made the cover for the first monthly magazine. During the 80’s, he got a regular column in “La Vie de l’Auto”. One of his last designs was about sports cars.

Car enthusiasts all over the world recognize Pierre Dumont’s signature style. He was the author of notably “Au Temps des Automobilistes” (1965), “Bugatti; Les Pur-Sang de Molsheim” (1975), “Peugeot, sous le signe du Lion” (1976) and “Citroën; Quai De Javel, Quai André Citroën” (1973).


Napier Gordon Bennett 40 HP, 1902

First British car to win a big international race, in the hands of S. F. Edge, this Napier was a powerful lightweight, simple in design but somewhat crudely made.

For instance, the chassis frame was of wood, reinforced by steel flitch-plates. Yet it had two outstanding distinctions lacking in the Mercedes - shaft drive to a live axle with enclosed bevel-and-pinion, and a monobloc casting in aluminium for its four cylinders.

Although the inlet valves were opened by atmospheric pressure, each cylinder contained a cage of four. Bore and stroke were both 5 in. (127 mm) and the swept volume 6,436 cc. The quadrant-change gearbox provided three speeds.

Mercedes 70 HP, 1908

Introduced in 1906, this was the first production Mercedes to have six cylinders, the bore and stroke being 120 x 140 mm (9.5 litres). The cylinders were cast in pairs, with non-detachable T-heads, side valves being operated by individual camshafts for inlet and exhaust. It delivered about 70 bhp.

A scroll clutch transmitted the drive to a four-speed gearbox and live axle. Backed by a successful competition schedule, the make had become accepted already as a world standard in automobile engineering.

The gargantuan example illustrated was equipped as a road-going equivalent of a luxurious Pullman express for long-distance touring; like an engine-driver, however, the paid chauffeur had to brave the natural elements.

Rolls-Royce 40/50 HP Silver Ghost, 1908–1909

Today’s Rolls-Royce is scarcely quieter or smoother-running than the great Silver Ghost of 1906-1925. Near-silence and high power output were incompatible in 1906, so the original 7-litre (114 x 114 mm) engine developed only 48 bhp at 1200 rpm.

But in 1908 the stroke was increased to 121 mm, the swept volume to 7.4 litres. The astonishing proportion of Silver Ghosts that have survived, and the current demand for them, are proof of supreme quality of manufacture and of road behaviour.

The technical specification was quite orthodox - indeed, cynics have even described the RR as a "triumph of development over design". Early models had an overdrive fourth gear which was later abandoned because one could hear it. This cabrio-landaulet body, its panels resplendent with ornate mouldings, is by Barker, for many years among the finest British coachbuilders.

Vauxhall Prince Henry, 1913–1914

The first Vauxhall Prince Henry (built for the Prince Henry Tour in 1910) was a 3-litre, but in 1913 the bore and stroke were increased from 90 x 120 mm to 95 x 140 (3,969 cc).

For its day this simple, long-stroke four-cylinder engine with side valves gave extraordinary power - 75 bhp at only 2,500 rpm; this endowed it with not only a high maximum - about 75 mph - but also a long stride.

Surviving examples can still cruise along all day at 60-65 mph; moreover, superb steering and stability put it among the most rewarding of all Edwardian touring cars. Designer L.H. Pomeroy gave it a Hele-Shaw multi-plate clutch, a splendid four- speed gearbox, and a bevel-drive axle with open propeller shaft and a long torque arm.

The simple, lightweight body included a polished aluminium bonnet behind a vee-radiator, both with the once-familiar horizontal flutes; Rudge Whitworth wire-spoked wheels with centre-lock hubs completed the ensemble.

Packard Twin Six, 1916

Designer Jesse Vincent's response to Kettering's vee-eight Cadillac of 1914 was the Packard Twin Six introduced the following year - the world's first real production car with 12 cylinders. The 6.9-litre side valve narrow angle engine had two banks cylinders inclined at 60 deg.

It developed about 75 bhp - rather more than the contemporary Rolls-Royce. The footbrake incidentally, operated contracting shoes around the same rear-wheel drums within which were expanding shoes controlled by the hand-brake lever.

A dry, multi-disc clutch transmitted the drive to a three-speed gearbox, and spiral bevel final drive. Electric starting and lighting were provided. In 1923 the Twin Six was dropped, and the vee-type engine's special bene compactness and rigidity were overlooked until 1932, when the company introduced a new vee-12.

Alfa Romeo P2 Grand Prix, 1924

One of the greatest racing cars of all time, the P2 was designed by engineer Romeo, and Vittorio Jano. The latter joined Alfa Romeo in September 1923, finished the project in January 1924, and the car won its first race five months later. Its career continued six years.

The straight-eight engine (61 x 85 mm, 1,987 cc) had two cylinder blocks with twin overhead camshafts and two opposed valves per cylinder. Compression ratio was 6 to 1, and a Roots supercharger blew at about 10 psi (0.75 kg/cm2).

The crankshaft was carried in 10 roller bearings, and transmission was through a multi-plate dry clutch, four-speed gearbox and torque tube axle. Power output progressed from 140 to 165 bhp at 5,500 rpm, and the machine�s potential maximum speed from about 125 to 140 mph.

Panhard 40/50 HP, 1924

French coachbuilder Henri Labourdette, who before the war had introduced the carvel-built skiff body, produced this exotic masterpiece on a big Panhard chassis for the Paris Salon of 1924.

He called it a skiff-cab. To enter the little house at the back you had first to fold the windscreen forward on the hinged decking, then to raise it before opening the door. Inside it was trimmed with Scotch tartan plaid.

This, the biggest of the Panhard range, had a powerful straight-eight engine (85 x 140 mm, 6,355 cc) with double sleeves, built under licence from the American Knight. For transmission it had a four speed box and propeller shaft enclosed in a torque tube.

Isotta Fraschini Tipo 8A Spinto, 1927

For sheer visual magnificence Italy's lsotta-Fraschini of the between-wars era were unexcelled, this great chassis inspiring some of the most elegant coachwork ever seen. Customers ranged from the Pope to heavyweight boxers and film stars. Yet for all the extravagance of engineering perfection in construction it was never a very good car dynamically.

Until the 8B arrived in 1934 the big straight-eight engine, designed by Cattaneo, was always short of power, and by repute the Isotta was as heavy as a lorry to handle. Initially - from 1919 to 1924 - the engine was just under 6 litres, but with the Tipo BA of 1925 this grew to 7,372 cc (95 x 130 mm), the output thereby rising from 80 to 120 bhp at 2,400 rpm.

The short-chassis Tipo Spinto shown above, with two carburettors, gave 135 bhp at 2,600 rpm, and the later 8Bs perhaps 160. A straightforward pushrod overhead valve unit with a nine-bearing crankshaft, it drove through a multi-plate clutch, three-speed gearbox with very widely spaced ratios, and torque tube axle.

lsotta-Fraschini were among the pioneers of four-wheel brakes. Castagna of Milan fashioned this dashing sports two-seater.

Mercedes Benz SS 38/250 HP, 1928

Mechanically the 38/250 was the work of Dr Ferdinand Porsche, its immediate predecessor being the 36/220 of 1927. But the engine size was increased from 6.8 to just over 7 litres (100 x 150 mm, 7,069 cc). The six-cylinder engine had a single overhead camshaft and, in the Mercedes-Benz tradition already well-established, a clutch-operated Roots-type blower.

This was engaged by pressing the accelerator to the floor-boards, and was not supposed to be used continuously. Without it, maximum power was about 140 bhp, and with it some 200 bhp at 3,200 rpm. Higher figures often quoted seem highly imaginative.

Top speed would be 110-115 mph in this form. Real he-man cars in looks and character, the 36/220 and 38/250 had considerable success in competition, and will forever be coupled with the memory of that great German ace Rudolf Caracciola. The type was also raced by the British drivers Lord Howe and Sir Malcolm Campbell.

This striking convertible by Hibbard and Darrin, emphasising the length of engine room required for great power in those days, is as perfectly matched to the chassis and balanced in line and proportion as any modern work.

Minerva 40 HP, 1930

With their Knight double-sleeve valve engines, Minervas were jealous of their reputation for quiet running and mechanical refinement the Belgian equivalent of the British Daimler. For this reason both makes were favourites for the undertaking business between the wars.

But in 1930 Minerva brought out a huge and heavy car with straight-eight Knight-type engine of 6,616 cc (90 x 130 mm) with a comparatively high performance. Power output was said to be 150 bhp. It had a four-speed gearbox and very long cantilever rear springs. This splendid boatdecked touring body had vee-screens for separate front and rear cockpits.

Packard Model 734 Speedster, 1930

Now a rare collector’s piece, the 734 had a guaranteed top speed of 100 mph. Its engine was a tuned version of the familiar 6.2-litre straight-eight, reputedly delivering about 145 bhp at 3,200 rpm, and a wide-ratio four-speed gearbox was featured, at a time when three speeds were almost universal in the USA.

This car was made for one year only. The sporting boat-tailed body, common in Europe at that time, becomes it well.

Duesenberg SJ Supercharged Roadster, 1936

With its 6.9-litre straight-eight engine boosted to 8 psi by a centrifugal blower to give 320 bhp, the short-chassis Duesenberg SJ was said to reach 100 mph from rest in 17 sec, to run to 104 mph in middle gear and rocket up to 130 mph or so in top.

Of the 478 chassis completed in the nine years 1929-37, only about three dozen were SJs. This 125 in. wheelbase version -- 17½ in shorter than standard -- was very rare.

Although these cars were not used in competition, a special SJ built for and driven by Ab Jenkins of Utah, put 152.14 miles into an hour and averaged 135.47 for 24 hours in 1935.

The history of the Duesenberg is closely linked with those of the Auburn and Cord cars, E. L. Cord having bought Duesenberg in 1928; the three makes went out of business simultaneously in 1937.

While the Model J engine was designed by Fred Duesenberg, assisted by his younger brother August, it was entirely manufactured for them by the Lycoming Company.

Packard Type 180 V8, 1939

One of the USA’s pioneer manufacturers, Packard produced the world’s first luxury car to be powered by a vee-12 engine, the astonishing Twin Six of 1915-1923.

This sporting "coupe de ville” by Darrin was the apogee of their range at the outbreak of World War II. It had a very refined side-valve vee-eight engine of 5.3 litres developing some 130 bhp.
Quelle: berkofinepaintings.com; Ronald Barker, Douglas B. Tubbs "In the age of motoring" (1971)
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