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What is it? Quiz #462


This Saturdays Quiz-Car is a very modern one for its time. Its titular saint was an engineer who started his career at a marquee located in Aachen/Aix la Chapelle. The car on the picture was the prototype, built in 1924. The car was powered by a 1500ccm straight four OHV-engine. Production and materials were very expensive and so was the car. It was entitled to be "the car for the bank manager, who doesn´t want to take his Maybach for every tour". About 15 cars were built until one of the sponsors of the project passed away in 1926 and the production was stopped. Only eight cars were sold, the other seven sadly were scrapped. Some more hints: Most known pictures show a very elegant roadster, but in 1925 two other versions were presented: a limousine and a cabriolet, both with bodys by Alexis Kellner. And next to the already mentioned engine, a sleeve-valve "counter-piston" engine was built. It sadly seems that none of the eight cars survived, even if a limousine was used as a cab a long time and our engineer still drove a roadster during the 1950s.

You know this fantastic car built between 1924 and 1926? Don´t hesitate and leave your answer in a comment before Monday and use no more than 100 words to collect some more points for our six-month challenge

Words and photographs by Hubertus Hansmann.



#10 Henk Visscher 2018-01-28 23:22
In 1923, Martin Stolle, German engineer of motorcycle fame, teamed up with the Kolb brothers, garage owners in Munich, to construct a technically advanced car in the higher-price segment. Early 1924, Kolb & Stolle Motorengesellsc haft produced the pictured prototype chassis with patented (26-02-1924) 1496cc sleeve-valve engine. In June 1924 the Kolb family withdraw themselves, but under financial control of the heirs of the industrialist Hugo Stinnes the project was continued by Vorster & Stolle Motoren-A.G. Limited production took place in 1925-1926. Cars were marketed as the Stolle-Wagen 6/40 PS. Both sleeve-valve (type W1) and poppet-valve (type W2) engines were offered.
#9 LUC RYCKAERT 2018-01-28 20:37
Stolle Sportwagen. Before building cars, Martin Stolle developed the "Bayermotor", a sidevalve 500cc boxer motorcycle engine. After further improvements, this formed the basis for the later famous BMW engines. With financial support from Hugo Stinnes, Vorster & Stolle Motoren AG was formed in Munich. From 1925, the Stolle Sportwagen, nicknamed "Kleiner Maybach" was produced. With OHC, developing 40 HP for 1500cc, it was top of the range. Later, a Belgian patent was applicated for a sleeve valve engine. With the death of Mr.Stinnes, also disappeared the financial basis for these expensive projects, early 1926, the Stolle brothers resigned and the firm went bankrupt.
#8 Fried Stol 2018-01-28 14:54
After gaining experience in both engine and car design at Cudell, Métallurgique, Rapp-Werke, Victoria and D-rad. Ing. Martin Stolle decided to built cars himself, Horch considdered to built these Stolle cars under license. When turned down Hermann Vorster a nephew of Hogo Stinnes stepped in. The car had an OHC with bevel drive four-cylinder. The chassis was remarkably low and wide and allowed speeds up to 120 km/h. When Hugo Stinnes died the financial basis was lost. Price of a complete chassis was between 10,000 and 12,000 mark! About 15 vehicles have been built of which two with sleeve motor.

P.S Martin Stolle is behind the wheel
#7 fritz hegemann 2018-01-28 13:17
Dear PrewarcarTeam,

here my answer to your quiz #462

Stolle Sportscar Prototype, 1924, overhead-shaft driven by camshaft, 40 hp at 2800/min, produced by Vorster & Stolle Motoren AG, München.
The constructeur Martin Stolle was an outstanding designer and active in some German companies: initially at Cudell in Aachen, then in 1917 at the Rapp Motorenwerke, which later became BMW, there one of the fathers of the Boxer-engine, also used at Victoria, Nürnberg. Leaving BMW he developed the following engines for Victoria.
Afterwards he improved the solid D-Rad-motorcycles, because the roadholding was impressive bad (Spandauer Springbock) and constructed the engines for R10 and R11, and an engine for NAG-cars.

Best regards from the Nahe-Valley!

#6 Frank Sauerwald 2018-01-28 09:58
It is a car designed by Martin Stolle, who started his career at Cudell in Aachen. Later he worked at Rapp Motorenwerke.
The Vorster and Stolle Motoren AG in München was involved in the Stinnes Group and they build few cars of the Stolle Typ 6/40 in 1925.
Hogo Stinnes died in 1925 and production of this remarkable car stopped.
#5 Alan Spencer 2018-01-27 23:12
Martin Stolle is at the wheel of the prototype Stolle 6/40 PS chassis, subsequently bodied as a roadster by coachbuilders Eugen Rupflin Jr. of Munich. The Stolle was advanced, with low-slung chassis; OHC engine, making extensive use of roller bearings; ribbed brakes; cast dashboard; etc. Nicknamed "The Little Maybach," the rolling chassis alone cost around 12,000 Reichmarks. Stolle founded Vorster & Stolle Motoren on June 14 1924 with financial partner, Hermann Vorster, nephew of the tycoon, Hugo Stinnes. Stinnes had died on April 10 1924, which eventually disrupted his vast industrial empire. Vorster & Stolle folded on November 12 1926.
#4 Gerd Klioba 2018-01-27 16:01
This is the Stolle 6/40 PS with Martin Stolle at the wheel. Stolle worked for Cudell, Métallurgique, BMW and Victoria before constructing his own car, which Horch was considering to build under license. In 1924 the company Kolb & Stolle, soon to be changed to Vorster & Stolle, built a factory in Munich with a 800-meter test track. Besides the two Kellner bodies, Rupflin and Neuer & Thieme built one roadster each. After Vorster's uncle Hugo Stinnes died, the company soon went bankrupt. Only the engine of Stolle's personal car survived in the Deutsches Museum, and a radiator emblem above his home's entrance.
#3 Michael Schlenger 2018-01-27 12:01
The picture shows engineer Martin Stolle at the wheel of the 6/40 h.p. car that he designed following employments with manufacturers like Cudell, Argus and Metallurgique. The car’s engine featured bevel-driven valves and produced 40 h.p. It was manufactured in Munich by a company named Vorster & Stolle Motoren AG. In the early 1920s Martin Stolle had designed flat twin engines for the German motorcycle manufacturer Victoria. After the demise of Vorster & Stolle he worked for several companies including NAG in Berlin where he had the task to redesign the aircooled flat-four engine of the ill-fated front-drive NAG “Voran”.
#2 Nigel Stennett-Cox 2018-01-27 11:58
British Salmson
#1 Robbie Marenzi 2018-01-27 01:44
1925 Stolle or Stolle-Wagen 6/40 Ps made by Vorster & Stolle Motoren A.G. München. At the wheel is Martin Stolle. Karosserie-Fabrik Eugen Rupflin Jr. made a roadster body on a Stolle, maybe this same chassis. Neuer & Thieme also made a roadster body on a Stolle.

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