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The Series 20 was an
automobile A car, or an automobile, is a motor vehicle with wheels. Most definitions of cars state that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, peopl ...
produced by
Oldsmobile Oldsmobile (formally the Oldsmobile Division of General Motors) was a brand of American automobiles, produced for most of its existence by General Motors. Originally established as "Olds Motor Vehicle Company" by Ransom E. Olds in 1897, it produc ...
division of
General Motors General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. The company is most known for owning and manufacturing f ...
in 1909. When the Oldsmobile Company joined General Motors in 1908, the Series 20 was one of the first examples of platform sharing that became GM's most notable business model, as it was derived from the previously established Buick brand from the
Buick Model B The Buick Model B was Buick's first model as an independent company, later becoming part of General Motors in 1908. It was built in Jackson, Michigan. A model B was exhibited in 1905 at the New York Auto Show as a promotion of the model C which ...
. The Series 20 effectively replaced the Model F, also known as the Curved-Dash Oldsmobile, when it was discontinued when GM assumed operations, and was replaced by the 1914 Oldsmobile Model 42 "Baby Olds". It was the entry-level vehicle below the Oldsmobile Model A and the luxury sedan Oldsmobile Model Z. It was the first Oldsmobile to use numbers to identify the product, a tradition that would last until the company concluded operations in 2004.


History

The Series 20 was equipped with a side-valve, in-line 2,704 cc
four-cylinder engine The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categoriz ...
developing 22 bhp. The engine was installed in the front, driving the rear wheels through a transmission shaft. The
gearbox A transmission (also called a gearbox) is a mechanical device invented by Louis Renault (who founded Renault) which uses a gear set—two or more gears working together—to change the speed, direction of rotation, or torque multiplication/r ...
had three forward gears, with the gearshift lever positioned to the right of the driver. The brake pedal came into contact with the engine's
crankshaft A crankshaft is a mechanical component used in a reciprocating engine, piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating Shaft (mechanical engineering), shaft containing one or more crankpins, ...
, while the parking brake came into contact with a
brake drum A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating bowl-shaped part called a brake drum. The term ''drum brake'' usually means a brake in which shoes press on the inner surface o ...
on the rear wheels. The Series 20 was available with only four doors. The headlights used
acetylene Acetylene (Chemical nomenclature, systematic name: ethyne) is a chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is u ...
. A total of 6,575 Oldsmobile vehicles were manufactured in 1909, with 5,325 of those being the Series 20.


References

Model 20 Cars introduced in 1909 {{Brass-auto-stub