Information:  - The Citroën DS is a front-engine, front-wheel-drive executive car manufactured and marketed by the French company Citroën from 1955 to 1975 in sedan, wagon/estate and convertible body configurations. Italian sculptor and industrial designer Flaminio Bertoni and the French aeronautical engineer André Lefèbvre styled and engineered the car. Paul Magès developed the hydropneumatic self-levelling suspension.  - An economy car is an automobile that is designed for low cost purchase and operation. Typical economy cars are small (compact or subcompact), lightweight, and inexpensive to buy. Economy car designers are forced by stringent design constraints to be inventive. Many innovations in automobile design were originally developed for economy cars, such as the Ford Model T and the Austin Mini. Gordon Murray, the Formula 1 and Mclaren F1 designer, said when designing his new Murray T.25 city car: "I would say that building a car to sell for six thousand pounds and designing that for a high volume production, where you have all the quality issues under control is a hundred times more difficult than designing a Mclaren F1, or even a racing car. It is certainly the biggest challenge I've ever had from a design point of view." The alternative approach other than innovating to build a low cost car, is build a stripped down no frills version of a conventional car.  - The Volkswagen Beetle (officially the Volkswagen Type 1, informally in Germany the Volkswagen Käfer, in Poland the Volkswagen Garbus and in the U.S. the Volkswagen Bug) is a two-door, four passenger, rear-engine economy car manufactured and marketed by German automaker Volkswagen (VW) from 1938 until 2003.  - The floorpan is a large sheet metal stamping that often incorporates several smaller welded stampings to form the floor of a large vehicle and the position of its external and structural panels.  In the case of monocoque designs, the floorpan is the most important metal part establishing the chassis, body, and thus the cars size. It serves as the foundation of most of the structural and mechanical components of a unibody automobile to which the powertrain, suspension system, and other parts are attached.  - The Ford Model T (colloquially known as the Tin Lizzie, TModel Ford, Model T, T, Leaping Lena, or flivver) is an automobile that was produced by Ford Motor Company from October 1, 1908, to May 26, 1927. It is generally regarded as the first affordable automobile, the car that opened travel to the common middle-class American; some of this was because of Ford's efficient fabrication, including assembly line production instead of individual hand crafting.  - Front-wheel drive (FWD) is a form of engine and transmission layout used in motor vehicles, where the engine drives the front wheels only. Most modern front-wheel-drive vehicles feature a transverse engine, rather than the conventional longitudinal engine arrangement generally found in rear-wheel-drive and four-wheel drive vehicles.  - A transverse engine is an engine mounted in a vehicle so that the engine's crankshaft axis is perpendicular to the long axis of the vehicle. Many modern front wheel drive vehicles use this engine mounting configuration. (Most rear wheel drive vehicles use a longitudinal engine configuration, where the engine's crankshaft axis is parallel to the long axis of the vehicle, except for some rear-mid engine vehicles, which use a transverse engine and transaxle mounted in the rear instead of the front.)  - The Mini is a small economy car produced by the English based British Motor Corporation (BMC) and its successors from 1959 until 2000. The original is considered an icon of 1960s British popular culture. Its space-saving transverse engine front-wheel drive layout  allowing 80 percent of the area of the car's floorpan to be used for passengers and luggage  influenced a generation of car makers. In 1999 the Mini was voted the second most influential car of the 20th century, behind the Ford Model T, and ahead of the Citroën DS and Volkswagen Beetle.  - The British Motor Corporation Limited (BMC) was a UK-based vehicle manufacturer, formed in early 1952 to give effect to an agreed merger of the Morris and Austin businesses.  - The Reece Fish carburettor ( also known as the Reece - Fish carburettor ) was a carburettor used by Mini Se7en racers in the 60s and 70s .    After reading the paragraphs above, we are interested in knowing the entity with which 'reece fish carburettor' exhibits the relationship of 'subclass of'. Find the answer from the choices below.  Choices: - area  - assembly  - automobile  - company  - configuration  - corporation  - design  - designer  - economy  - economy car  - engine  - english  - feature  - floor  - formula  - foundation  - germany  - metal  - model  - position  - production  - racing  - sculptor  - sedan  - sheet metal  - space  - suspension  - system  - transmission  - type  - vehicle  - volume  - wheel
The answer to this question is:
automobile