Tuesday, May 25, 2010

Body work

In automotive engineering, the bodywork of an automobile is the structure which protects:
The occupants
Any other payload
The mechanical components.
In vehicles with a separate frame or
chassis, the term bodywork is normally applied to only the non-structural panels, including doors and other movable panels, but it may also be used more generally to include the structural components which support the mechanical components.
Construction
There are three main types of automotive bodywork:
The first automobiles were designs adapted in large part from horse-drawn carriages, and had
body-on-frame construction with a wooden frame and wooden or metal body panels. Wooden-framed motor vehicles remain in production to this day, with many of the cars made by the Morgan Motor Company still having wooden structures underlying their bodywork.
A steel
chassis or ladder frame replaced the wooden frame. This form of body-on-frame construction is still common for commercial vehicles.
Monocoque, or unibody construction, in which the "chassis" is part of, and integrated with the metal body. It provides support to all the mechanical components, as well as protection for the vehicle occupants. Although there is no separate complete frame or chassis, many monocoque/unibody designs now often include subframes. Steel monocoque construction is now the most common form of car bodywork, although aluminum and carbon fiber may also be used.
Less common types include
tube frame and space frame designs used for high-performance cars. There have also been various hybrids, for example the Volkswagen Beetle had a chassis, consisting of the floor pan, door sills and central tunnel, but this chassis relied on the stiffening provided by the bodywork, a technique sometimes called semi-monocoque construction.
Non-structural body panels have been made of
wood, steel, aluminum, fiberglass and several more exotic materials.
Body styles
There are several common car body styles:
Enclosed:
Sedan, known as a Saloon in British English.
Hardtop
Coupé
2+2
Notchback
Limousine
Open or partly enclosed:
Roadster
Convertible (or Cabriolet)
Stanhope body
Touring car
Town car
Rear door designs:
Station wagon or Estate car
Sedan delivery
Hearse
Hatchback
Liftback
Combi coupé
Other:
Sport utility vehicle (SUV)
Crossover
Minivan
Coupe Utility
Styles in current use
4x4 or 4WD ("four-by-four" or "four-wheel drive")
A four-wheeled vehicle with a
drivetrain that allows all four wheels to receive power from the engine simultaneously. The terms are usually (but not exclusively) used in Europe to describe what is referred to in North America as a sport utility vehicle or SUV (see below).
Buggy
A Buggy is an automobile with wheels that project beyond the vehicle chassis.
Cabrio coach or Semi-convertible
A form of car roof, where a retractable textile cover amounts to a large
sunroof. Fundamental to various older designs such as the Citroën 2CV; sometimes an option on modern cars.
Cabriolet
A term for a convertible (see below).

A BMW M3 convertible
Convertible
A body style with a flexible textile folding roof or rigid retracting roof — of highly variable design detail — to allow driving in open or enclosed modes.
Coupé
A 2-door, 2- or 4-seat car with a fixed roof. Its doors are often longer than those of an equivalent sedan and the rear passenger area smaller; the roof may also be low. In cases where the rear seats are very small and not intended for regular use it is called a
2+2 (pronounced "two plus two"). Originally, a coupé was required to have only one side window per side, but this consideration has not been used for many years.
Coupé utility (ute)
the coupé utility is a passenger-car derived vehicle with coupé passenger cabin lines and an integral cargo bed.
Crossover (or CUV)
A loose marketing term to describe a vehicle that blends features of a
SUV with features of a car — especially forgoing the body on frame construction of the SUV in favor of the car's unibody or monocoque construction.
Estate car
British name for a station wagon.
Fastback
A design where the roof slopes at a smooth angle to the tail of the car, but the rear window does not open as a separate "door".
Hardtop
A style of car roof. Originally referred to a removable solid roof on a convertible; later, also a fixed-roof car whose doors have no fixed window frames, which is designed to resemble such a convertible.

Tata Nano Europa, a compact hatchback
Hatchback
Identified by a rear door including the back window that opens vertically to access a storage area not separated from the rest of the passenger compartment. May be 3 or 5-door and 2 to 5 seats, but generally in the US the tailgate isn't counted making it a 2-door and 4-door.
Hearse
A converted
luxury car usually used to transport the dead. Often longer and heavier than the vehicle on which they are usually based. Can sometimes double up as an ambulance in some countries, such as the United States, especially in rural areas.
Leisure activity vehicle
A small
van, generally related to a supermini, with a second or even a third seat row, and a large, tall boot.
Liftback
A style of coupé with a hatchback; this name is generally used when the opening area is very sloped (and is thus lifted up to open).

A Lincoln Town Car limousine
Limousine
By definition, a
chauffeur-driven car with a (normally glass-windowed) division between the front seats and the rear. In German, the term simply means a sedan.
Minibus
Designed to carry fewer people than a full-size bus, generally up to 16 people in multiple rows of seats. Passenger access in normally via a sliding door on one side of the vehicle. One example of a van with a minibus version available is the Ford Transit.
Minivan
North American term for a boxy wagon-type of car usually containing three or four rows of seats, with a capacity of six or more passengers. Often with extra luggage space also. As opposed to the larger van, the minivan was developed primarily as a passenger vehicle, though is more van-like than a station wagon. In Britain, these are generally referred to as
people carriers.
MPV
Multi-purpose vehicle, a large car or small bus designed to be used on and off-road and easily convertible to facilitate loading of goods from facilitating carrying people.
Notchback
A cross between the smooth
fastback and angled sedan look. It is a sedan type with a separate trunk compartment.
People carrier or people mover
European name to describe what is usually referred to in North America as an
Minivan.
Pickup truck a.k.a pickup
A small, medium, or large-sized truck, though smaller in every case than a
Semi tractor truck. The passenger cabin is wholly separated from the cargo bed.
Pillarless
Usually a prefix to coupé, fastback, or hardtop; completely open at the sides when the windows are down, without a central
pillar, e.g. the Sunbeam Rapier fastback coupé.
Ragtop
Originally an open car like a roadster, but with a soft top (cloth top) that can be raised or lowered. Unlike a
convertible, it had no roll-up side windows. Now often used as slang for a convertible.
Retractable Hardtop
aka Coupé convertible or Coupé Cabriolet. A type of convertible forgoing a foldable textile roof in favor of a multi-segment rigid roof retracts into the lower bodywork.
Roadster
Originally a two-seat open car with minimal weather protection — without top or side glass — though possibly with optional hard or soft top and side curtains (i.e., without roll-up glass windows). In modern usage, the term means simply a two-seat
sports car convertible, a variation of spyder.
Sedan
A car seating four or more with a fixed roof that is full-height up to the rear window. Known in British English as a saloon. Sedans can have 2 or 4-doors. This is the most common body style[
citation needed]. In the U.S., this term has been used[who?] to denote a car with fixed window frames, as opposed to the hardtop style wherein the sash, if any, winds down with the glass.

Chevrolet HHR sedan delivery
Sedan delivery
North American term for a vehicle similar to a wagon but without side windows, similar to a
panel truck but with two doors (one on each side), and one or two rear doors . Often shortened to delivery; used alone, "delivery" is presumed to be a sedan delivery. No longer manufactured.
Sport utility vehicle (SUV)
Derivative of a pickup truck or 4-wheel-drive vehicle, but with fully-enclosed passenger cabin interior and carlike levels of interior equipment.
Spyder (or Spider)
Similar to a roadster but originally with less weather protection. The term originated from a small two-seat horse cart with a folding sunshade made of four bows.[
citation needed] With its black cloth top and exposed sides for air circulation, the top resembled a spider. Nowadays it simply means a convertible sports car.
Shooting brake
A two-door estate car; generally for vintage or extremely expensive vehicles. They were vehicles for the well-off shooter and hunter, giving space to carry shotguns and other equipment. Usually made to order by
coachbuilders.[citation needed] The term is occasionally revived.
Station wagon
A car with a full-height body all the way to the rear; the load-carrying space created is accessed via a rear door or doors. Sometimes shortened to just wagon.
Surrey top
Similar to the Porsche Targa top, the surrey top was developed by Triumph in 1962 for the
TR4.
T-top
A derivative of the Targa top, called a T-bar roof, this fixed-roof design has two removable panels and retains a central narrow roof section along the front to back axis of the car (e.g.
Toyota MR2 Mark I.)
Targa top
A semi-convertible style used on some sports cars, featuring a fully removable hard top roof panel which leaves the A and B
pillars in place on the car body. (e.g. Fiat X1/9). Strictly, the term originated from and is trademarked by Porsche for a derivate of its 911 series, the Porsche 911 Targa, itself named after the famous Targa Florio rally. A related styling motif is the Targa band, sometimes called a wrapover band which is a single piece of chrome or other trim extending over the roof of the vehicle and down the sides to the bottom of the windows. It was probably named because the original Porsche Targa had such a band behind its removable roof panel in the late 60s.
Ute
Australian/New Zealand English term for the Coupe Utility body style (see above). Sometimes used informally to refer to any utility vehicle, particularly light trucks such as a pickup truck. In American English, sport-ute is sometimes used[who?] to refer to an SUV (see above).

A Dodge Sprinter, one particular model of van.
Van
In
North America "van" refers to a truck-based commercial vehicle of the wagon style, whether used for passenger or commercial use. Usually a van has no windows at the side rear (panel van), although for passenger use, side windows are included. In other parts of the world, 'van' denotes a passenger-based wagon with no rear side windows.
Wagon delivery
North American term (mainly U.S. and Canada). Similar to a sedan delivery, with four doors. Sometimes shortened to delivery; used alone, "delivery" is presumed to be a sedan delivery. No longer manufactured.
Non-English terms
Some non-
English language terms are familiar from their use on imported vehicles in English-speaking nations even though the terms have not been adopted into English.
Barchetta
Italian term for a roadster. The name means, roughly, "small boat".
Berlina
Italian term for a sedan.
Berline
French term for a sedan.
Berlinetta
Italian term for a sport coupé.
Break
French term for a station wagon.
Carrinha
Portuguese term for a station wagon. Not used in Brazilian Portuguese.
Espada
Portuguese nickname for a limousine (the same word for Sword - long piece of metal). Not used in Brazilian Portuguese.
Furgoneta
Portuguese term for a van. Not used in Brazilian Portuguese.
Furgão
Portuguese alternative term (less used) for a van. Used in Brazilian Portuguese.
Jeep
Russian, Bulgarian, German, Portuguese, Hebrew and Greek term for a sport utility vehicle. Originally from the English-language jeep, of which the name's origins can be researched on the Jeep page.
Kombi
is a
German abbreviation of "Kombinationswagen" (Combination Car) and it is German name for station wagon. Since Germany is a major producer of cars for many European countries, the term Kombi in this meaning is also used in Swedish, Czech, Slovak, Polish, Slovenian, Serbian, Croatian, Hungarian, Spanish, Portuguese, Bulgarian. In Afrikaans, Kombi is also used to refer to a Volkswagen Microbus
Minibus
Danish term for Minivan.
Stationcar
Danish term for station wagon.
Turismo
Spanish term for a sedan. Literally means tourism, used mostly in Latin American countries.
Alternative names
Car manufacturers sometimes invent names for the body styles of their cars for the purpose of differentiating themselves from other manufacturers. These names are often, but not always, adaptations of other words and terms. The body styles themselves correlate closely to those listed above.
Aerodeck
Name used by
Honda in the 1990s for its station wagon/estate models.
Avant
A name used by German maker
Audi for their station wagon/estate car models.
Bakkie
A generic
South African term for light pickup truck.

A 1968 Chevrolet El Camino
Break
A term used by Peugeot and Citroen to describe
estates
El Camino
(Spanish) In English: "the road". A trademark of
Chevrolet, the 1959 El Camino was a half-car (front) and half-truck (back) with low walls surrounding the bed. In other words, it used the coupé utility body style. El Camino is used by some in the US as a generic term for any passenger car with an integral cargo bed. While the 1957 Ford Ranchero with similar body style debuted before the El Camino, it did not have the success of its Chevrolet counterpart.
Caravan
Used by
Opel for its station wagon/estate car models.
Combi
Used by
Škoda for its station wagon/estate car models.
Combi coupé
A name used by
Saab for a cross between a saloon and an estate car, essentially a hatchback. Called "SportCombi" in the United States.
Corniche
Sometimes used to describe a luxury sedan or town car. Actually a trade mark of
Rolls-Royce.
Coupe Roadster
The
Mercedes-Benz name for their convertibles with a removable hardtop.
Fordor and Tudor
These names were coined by
Ford Motor Company in the 1950s to describe four-door and two-door bodystyles respectively. These terms were used sporadically into the 1960s.
Giardinetta
Name used in Italy in the 70s and early 80s in models for an
Autobianchi three-door station wagon based on Fiat 600, as well as a similar version of the Alfa Romeo Alfasud.
Hardtop Convertible
A
retractable hardtop, e.g., the 1958 Ford Skyliner or Peugeot's décapotable électrique of 1934.
HPE
Short for High Performance Estate, a name used by
Lancia for a station wagon version of their Beta model. Resurrected for the three-door hatch version of the Lancia Delta Mk II.
Kammback
Originally, a car with a tapered rear that cuts off abruptly, after that shape's inventor
Wunibald Kamm, commonly seen especially on sports cars. However, this usage is rare nowadays. In North America during the 1970s this style was used in the Chevrolet Vega wagon and AMC Hornet wagon, and so many think of it as another word for "station wagon" or "hatchback" respectively even though it refers to the very specific aerodynamic design of the back of the car. This style is seeing a resurgence on modern vehicles (2004 Toyota Prius and Honda Insight) in the interests of gasoline economy.
Nevada
Popular station wagon/estate version of the
Renault 21, so much that people dropped the 21 when referring to it.
Notchback
Originally, a sedan or possibly a coupe with a backlight (rear window) which slanted backward, so that the top of the roof extended further backward than the bottom of the window. Some types of the 1958
Lincoln had this, as well as some of Ford's British cars. Later, it became used for sedans or coupes which are not fastbacks, including many hatchbacks.
Panorama
Used by
Fiat for station wagons during the late 1970s and early 1980s, notably the 127, 128 and 131. Replaced by the Weekend designation in the mid 1980s, but kept for passenger versions of light commercial vehicles.
Pillared Hardtop
This name was used by Ford in the 1970s to describe its bodies which had frameless door glass like a hardtop, but retained a center
pillar like a sedan. The 1972-1976 Torino sedans and wagons were of this type, as were the 1975-1979 Lincoln Town Cars. When GM introduced a similar style on their intermediates for 1973–1977, they called the two-doors Colonnade Hardtop Coupe and the four-doors, in a triumph of ad agency gibberish, Colonnade Hardtop Sedan. The 1976 Buick Century sedan used this configuration. Before Ford introduced its "Pillared Hardtops" in the early seventies, GM had the same body style available on its "C" body cars (Buick Electra 225, Oldsmobile 98 and Cadillacs) from 1965 to 1970. GM called them "semi-thin pillar sedans" as they had a slightly larger center pillars than other GM sedans (that were called "thin pillar sedans") but they had no window frames like the "thin pillar sedans" had.
Prairie
A high roofed
station wagon, after the Nissan model of the same name.
Sport Activity Coupe (SAC)
This name is used by
BMW for their X5-based X6, which is called so because although it's an SUV, the X6 has the styling, ride height, and seating capacity of a typical coupe.
Sport Activity Vehicle (SAV)
This name is used by
BMW for their sport utility vehicle models. It was first used on the X5 and later on the X3.
Sport sedan or
Sports sedan
is how
General Motors calls its models by Saab automobile.
Sportshatch
This term, which has been used by GM for several European models, has been applied to a number of body styles: A sporty liftback or hatchback and a sporty variant of a 2-door estate car (e.g.
Vauxhall Magnum Sportshatch).

A Dodge Magnum, sometimes referred to as a sports wagon
Sportwagon
A term used by Alfa Romeo to describe
estates
Sports Wagon
A term used by a number of manufacturers in the North American market for their station wagon models, an example of the Sports Wagon would be the 1960s
Buick Sport Wagon and the current Dodge Magnum. Auto manufacturers in recent years perceive a stigma attached to the term 'station wagon', and attempt to make these models sound more exciting.
SW
A term used by Peugeot to describe
estates (e.g. Peugeot 407 SW) The SW models of Peugeot (without 206 SW) are station wagons with glass panoramic roof. There are also BREAK versions,which are station wagons without a glass roof.
Tourer
Used by
Rover for its station wagon/estate car models.
Touring
Used by
BMW and Mercedes-Benz in Europe for its station wagon/estate car models. In North America, "Sports Wagon" is used instead.
Traveller
Name applied to the
Mini's estate version. Later co-opted by Nissan and used for estate versions of the Sunny and Primera in Europe.
Turnier
Used by
Ford in Europe for its station wagon/estate car models. Alternatively called Clipper in some markets.
Variant
Used by
Volkswagen for its station wagon/estate car models.
Vario
Used by
SEAT for its station wagon/estate car models.
Verso
Used by
Toyota for MPV versions of the Yaris/Vitz, Corolla and Avensis.
Volante
Used by
Aston Martin for convertibles.
Weekend
Used by
Fiat for station wagons since the 1980s, including the Regata, Tempra and Marea, as well as the small Brazilian-built world car estates Duna and Palio.

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