Imperia

B, 1906 – 1949

(1) Automobiles Imperia, Liège, Nessonvaux, 1906 – 1929

(2) SA des Automobiles Imperia-Excelsior, Nessonvaux, 1929 – 1949

The first Imperia cars were the work of the German Paul Henze, who himself handled an 8-litre car in the 1907 Kaiserpreis. At first only a Imperia 24/30hp four of 4.9-litres was marketed with low tension magneto and coil-ignition, 4-speed gearbox, and shaft or side-chain drive. The smaller 3-litre Imperia car that followed was shaft-driven, and a 1.767cc monobloc four arrived during 1909. As late as 1911 an immense, Kaiserpreis-inspired chain-driven 9.9-litre 50/60 Imperia car was still offered. In 1912 Imperia cars merged with Springuel, but though the latter name soon vanished, Jules Springuel took over the management, and some Springuel designs were sold under the Imperia car companies name. In 1914 Imperia cars in a range of conventional, well-made small volume fours, of 1.8-litres, 2.6-litres, 3.6-litres and 5-litres was offered.

In 1919 the Imperia car company took over the manufacture of the Spanish Abadal (this had always had a substantial Belgium content), offering both a 3-litre Imperia Type E, and the Hispano-Suiza-like 80x180mm 3.6-litre Imperia Type T, complete with handsome V-radiator as found on subsequent Imperias. These Imperia cars were made in small numbers until 1922, though a 6-litre twin-carburettor sohc Imperia-Abadal straight-9 with Perrot fwb on a 12ft wheelbase never progressed beyond the prototype stage. Equally short-lived Imperia car, was a promosing sports car, the long-stroke 16-valve ohc 4-cylinder 3-litre with which de Tornaco won the 1922 Belgium GP. In 1923 M.A. van Roggen, now in charge at Nessonvaux, came up with his side-valve 1.100cc 6CV Imperia car, a small tourer of Panhard-like appearance, but with an unusual servo-assisted foot transmission brake – brakes on the front wheels were standardized in 1925 on Imperia cars. This Imperia car was quite successful, winning the small-car class of the 1926 Monte Carlo Rally and selling 504 Imperia cars in 1927, but Van Roggen’s ‘empire-building’ did not prosper: plans to produce 6CVs in France (at the Voisin works) and at the British GWL factory proved abortive. The 1928 Imperia car season brought a companion 1.642cc six, later enlarged to 1.8-litres and available in 3-carburettor sporting form, and in this period Imperia cars acquired Excelsior, Nagant (who were converted to making 6-cylinder engines), and the Matthys et Osy coachbuilding works. The slide-valve Imperia car models survived until 1934, acquiring hydraulic brakes at the end, but in 1934 Imperia took out a licence to build fwd Adlers, and until 1940 these were their staple; the 995cc Trumpf-Junior, the 1.645cc Trumpf, and the later Zweiliter were all made. In 1935 the Imperia car company fused with the only other surviving Belgian private-car maker, Minerva, and the big sleeve-valve models from Antwerp disappeared for good.

In 1947 there was a brief revival by Imperia cars with the Imperia TA8, a synthesis of pre-World War 2 fwd models by Adler and Amilcar, powered by the 1.340cc ohv 4-cylinder engine used in 1940 Amilcars. Features of this Imperia car were fravity feed, hydraulic brakes, a 3-speed gearbox with dashboard change, and composite wood and metal coachwork. 

D, 1935

Imperia-Werk AG, Bad Godesberg

The German Imperia factory, well-known for its motorcycles, had already experimented with Imperia cars in 1924/ 1925, but production on a limited scale of Imperia cars was not started until 1935. A 3-cylinder 2-stroke 750cc radial engine mounted in the rear of the Imperia car was used for a streamlined two-seater coupé and for a small monoposto racing Imperia car, both with independent wheel suspension. Financial difficulties stopped production of Imperia cars at an early stage.

Source: Georgano, encyclopedia of motorcar; MCS, HON

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com

Stoewer

D, 1899 – 1939

(1) Gebrüder Stoewer, Fabrik für Motorfahrzeuge, Stettin, 1899 – 1916

(2) Stoewer-Werke AG vorm. Gebr. Stoewer, Stettin, 1916 – 1939

The Stoewer car factory developed out of the Stoewer ironworks and was among the pioneers of the German car industry. After manufacturing motor cycles, tricycles and quadricycles for two years, Stoewer turned to cars in 1899. The first Stoewer car had a rear-mounted 2-cylinder engine. 4-cylinder Stoewer cars followed in 1901, and electric Stoewer cars were also produced. Best known were the 2-cylinder Type T Stoewer car (2.280cc and 3/12PS), the 4-cylinder Stoewer P4 (3.052cc and 11/22PS), the Stoewer G4 (1.500cc and 6/12PS) and the 6-cylinder Stoewer P6 (8.820cc and 34/60PS), evolved in the 1905-1907 period all Stoewer cars with shaft-drive. The Stoewer B1 of 6/16PS and the Stoewer B6 of 9/22PS which appeared in 1910 were also built by Mathis under licence. The G4 Stoewer car was the basis for the Stoewer B5, which Stoewer car in 1912 became famous by setting up a record at Brooklands with 67.7mph. The new range of Stoewer cars which appeared in 1913 was also based on successful earlier cars. They were the Stoewer C1 (6/18PS), Stoewer C2 (10/28PS) and C3 Stoewer car (6-cylinder and 19/45PS). Shortly before the outbreak of World War 1 the Stoewer car range was headed by the F4 Stoewer car with a 4-cylinder, 8.8-litre 33/100PS ohc engine. After the war an enormous Stoewer car appeared, the Stoewer D7, using a 6-cylinder 11.2-litre 42/120PS aero engine, as well as some conservative sv 4- and 6-cylinder Stoewer cars with rear wheel and transmission brakes. Front wheel brakes appeared on Stoewer cars in 1925. Stoewer introduced 8-cylinder Stoewer cars in 1928. These were the Stoewer Superior, Stoewer Marschall, Stoewer Gigant and Stoewer Repräsentant with engines ranging from 2-litres and 45bhp to 4.9-litres and 100bhp. The Stoewer car firm re-entered the economy class in 1931 with the V5, a front-driven Stoewer car with a V4 1.188cc engine, followed by the front-drive models R140 (1.369cc), R150 (1.488cc) and R180 (1.769cc). Another 8-cylinder was the front wheel drive Greif V8 with a 2.488cc engine, which was replaced by the conventional 6-cylinder 3.609cc Arcona Stoewer car in 1938. In 1934 the 1½-litre 4-cylinder Stoewer car and 2½-litre V8 Stoewer car were shown at the Brussels Salon by Monsieur Dewaet under the name D.S. (Dewaet-Stoewer). The Greif Junior was built under Tatra licence with an opposed 4-cylinder 1.474cc engine. It succeeded the Röhr Junior. In the middle of the range was the Stoewer Sedina with a 4-cylinder engine of 2.4-litres.

Production of private Stoewer cars was given up at the outbreak of World War 2 in 1939. The Stoewer car factory was destroyed during the war and production of Stoewer cars was not resumed.

Source: Georgano, encyclopedia of motorcar; HON   

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com