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Height Adjustable Suspension
Height adjustable suspension is a feature of certain automobile suspension systems that allow the motorist to vary the ride height or ground clearance. This can be done for various reasons including giving better ground clearance over rough terrain, a lower ground clearance to improve performance and fuel economy at high speed, or for stylistic reasons. Such a feature requires fairly sophisticated engineering. Height adjustment is most often achieved by air or oil compression used for the "springs" of the vehicle when the pressure is varied the vehicle body rises or lowers. Factory systems for cars The first instance of a production vehicle with adjustable suspension was on the 1954 Citroën 15CVH. This vehicle featured a self-leveling, height adjustable hydropneumatic suspension. Since this time, these systems have appeared continuously on Citroën models, including the DS and CX. Height adjustable suspension was banned in the United States from 1974 to 1981, due to th ...
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Suspension (vehicle)
Suspension is the system of tires, tire air, springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems must support both road holding/ handling and ride quality, which are at odds with each other. The tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the road or ground forces acting on the vehicle do so through the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage from damage and wear. The design of front and rear suspension of a car may be different. History An early form of suspension on ox-drawn carts had the platform swing on iron chains attached to the wheeled frame of the carriage. This system remained the basis for most suspension systems until the turn of the 19th century, although the iron c ...
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Subaru XT
The Subaru XT was a four-passenger, 2-door coupé manufactured and marketed by Subaru for model years 1985-1991, with a facelift in 1987. Assembly took place at Subaru's Yajima Plant in Ota, Japan and during its single generation, production reached just over 98,000. The XT was noted for its pronounced wedge shape, its uncommonly low coefficient of drag; its aviation influences from the aircraft division of parent company Fuji Heavy Industry; and its host of features, either innovative or uncommon in the XT's class — including adjustable pneumatic suspension, digital dash, central locking system, op-art upholstery, pod- and center console-mounted HVAC controls, advanced trip computer, and instrument cluster that tilted with adjustment of the steering column. The XT launched in February 1985 in the American market, followed by a June debut in Japan. It was marketed as the Alcyone in Japan, the Vortex in Australia and New Zealand — and as the XT (with the EA-82 four- ...
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Low-floor Bus
A low-floor bus is a bus or trolleybus that has no steps between the ground and the floor of the bus at one or more entrances, and low floor for part or all of the passenger cabin. A bus with a partial low floor may also be referred to as a low-entry bus or seldom a flat-floor bus in some locations. Low floor refers to a bus deck that is accessible from the sidewalk with only a single step with a small height difference, caused solely by the difference between the bus deck and sidewalk. This is distinct from high-floor, a bus deck design that requires climbing one or more steps (now known as step entrance) to access the interior floor that is placed at a higher height. Being low-floor improves the accessibility of the bus for the public, particularly the elderly and people with disabilities, including those using wheelchairs and walkers. Almost all are rear-engine, rear-wheel-drive layout with no drive shaft. Configuration Low-floor and low-entry buses Low-floor buses are ...
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Tesla Model X
The Tesla Model X is a battery electric mid-size luxury crossover SUV produced by Tesla, Inc. since 2015. Developed from the full-sized sedan platform of the Tesla Model S, the vehicle is notable in that it uses falcon-wing doors for passenger access. The Model X has an EPA size class as an SUV, and shares around 30 percent of its content with the Model S, half of the originally planned 60 percent, and weighs about 10 percent more. Both the Model X and Model S are produced at the Tesla Factory in Fremont, California. The prototype was unveiled at Tesla's design studios in Hawthorne, California on February 9, 2012. First deliveries of the Model X began in September 2015. After one full year on the market, in 2016, the Model X ranked seventh among the world's best-selling plug-in cars. As of April 12, 2021, the Model X is only available as the Long Range with an estimated EPA range of and the Plaid model with an estimated EPA range of . Both come with Tesla's Autopilot dri ...
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Tesla Model S
The Tesla Model S is a battery-powered liftback car serving as the flagship model of Tesla, Inc. The Model S features a dual-motor, all-wheel drive layout, although earlier versions of the Model S featured a rear-motor and rear-wheel drive layout. Development of the Model S began prior to 2007, under the codename "WhiteStar". The Model S was officially announced on June 30, 2008, and a prototype vehicle was unveiled in March 2009. The Model S debuted on June 22, 2012. A revised, dual-motor, all-wheel-drive version, known as the 60D, debuted on October 9, 2014. The 60D was followed by the 70D, which made dual-motor and all-wheel drive the standard, followed by the 85D, P85D, and P90D. Along with these updates, Tesla offered the Autopilot driving assistance system. In April 2016, the Model S was updated with a new front hood design. In October of the same year, hardware became standard that supports Tesla's Full Self Driving (FSD) capability. As part of the update, integrated ...
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Jeep Grand Cherokee
The Jeep Grand Cherokee is a range of mid-size SUVs produced by the American manufacturer Jeep. At its introduction, while most SUVs were still manufactured with body-on-frame construction, the Grand Cherokee has used a unibody chassis from the start. Development The Grand Cherokee's origins date back to 1983 when American Motors Corporation (AMC) was designing a successor to the smaller Jeep Cherokee (XJ). Three outside (non-AMC) designers— Larry Shinoda, Alain Clenet, and Giorgetto Giugiaro—were also under contract with AMC to create and build a clay model of the Cherokee XJ replacement, then known as the "XJC" project. However, the basic design for the Cherokee's replacement was well under way by AMC's in-house designers and the 1989 Jeep Concept 1 show car foretold the basic design. As AMC began development of the next Jeep in 1985, management created a business process that is now known as product lifecycle management (PLM). According to François Castaing, Vice Pre ...
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Audi AG
Audi AG () is a German automotive manufacturer of luxury vehicles headquartered in Ingolstadt, Bavaria, Germany. As a subsidiary of its parent company, the Volkswagen Group, Audi produces vehicles in nine production facilities worldwide. The origins of the company are complex, going back to the early 20th century and the initial enterprises (Horch and the ''Audiwerke'') founded by engineer August Horch (1868–1951); and two other manufacturers (DKW and Wanderer), leading to the foundation of Auto Union in 1932. The modern Audi era began in the 1960s, when Auto Union was acquired by Volkswagen from Daimler-Benz. After relaunching the Audi brand with the 1965 introduction of the Audi F103 series, Volkswagen merged Auto Union with NSU Motorenwerke in 1969, thus creating the present-day form of the company. The company name is based on the Latin translation of the surname of the founder, August Horch. , meaning "listen", becomes in Latin. The four rings of the Audi logo each repr ...
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Audi A8
The Audi A8 is a full-size luxury sedan manufactured and marketed by the German automaker Audi Audi AG () is a German automotive manufacturer of luxury vehicles headquartered in Ingolstadt, Bavaria, Germany. As a subsidiary of its parent company, the Volkswagen Group, Audi produces vehicles in nine production facilities worldwide. ... since 1994. Succeeding the Audi V8, and now in its fourth generation, the A8 has been offered with both front-wheel drive, front- or permanent four-wheel drive, all-wheel drive—and in short- and long-wheelbase variants. The first two generations employed the Volkswagen Group D platform, with the current generation deriving from the Volkswagen Group MLB platform, MLB platform. After the original model's 1994 release, Audi released the second generation in late 2002, the third in late 2009, and the fourth and current iteration in 2017. Noted as the first mass-market car with an aluminium chassis, all A8 models have used this constructio ...
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Active Body Control
Active Body Control, or ABC, is the Mercedes-Benz brand name used to describe electronically controlled hydropneumatic suspension. This suspension combines a high level of ride quality with control of the vehicle body motions, and therefore virtually eliminates body roll in many driving situations including cornering, accelerating, and braking. Mercedes-Benz has been experimenting with these capabilities for automobile suspension since the air suspension of the 1963 ''600'' and the hydropneumatic (fluid and air) suspension of the 1974 ''6.9''. ABC was only offered on rear-wheel drive models, as all-wheel drive 4MATIC models were available only with ''Airmatic'' semi-active air suspension, with the 2019 Mercedes-Benz GLE 450 4MATIC being the first AWD to have ABC available. The production version was introduced at the 1999 Geneva Motor Show on the new Mercedes-Benz CL-Class C215. Description In the ABC system, a computer detects body movement from sensors located ...
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Mercedes-Benz
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartered in Stuttgart, Baden-Württemberg, Germany. Mercedes-Benz AG produces consumer luxury vehicles and commercial vehicles badged as Mercedes-Benz. From November 2019 onwards, Mercedes-Benz-badged heavy commercial vehicles (trucks and buses) are managed by Daimler Truck, a former part of the Mercedes-Benz Group turned into an independent company in late 2021. In 2018, Mercedes-Benz was the largest brand of premium vehicles in the world, having sold 2.31 million passenger cars. The brand's origins lie in Daimler-Motoren-Gesellschaft's 1901 Mercedes (marque), Mercedes and Carl Benz's 1886 Benz Patent-Motorwagen, which is widely regarded as the first internal combustion engine in a self-propelled automobile. The slogan for the brand is "the bes ...
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Ford Expedition
The Ford Expedition is a full-size three-row SUV, manufactured by Ford. Introduced for the 1997 model year as the successor of the Ford Bronco, the Expedition was the first full-size Ford SUV sold with a four-door body. For its entire production life, the Ford Expedition has been derived from the corresponding generation of the Ford F-150 in production, sharing some body and mechanical components. The fourth-generation Ford Expedition began production for the 2018 model year. Similar to the configuration of the Chevrolet Tahoe and Suburban, the Ford Expedition is sold in regular and extended lengths (the Ford Expedition EL/Max); sold since 2007, the latter functionally serves as the replacement for the Ford Excursion. Since 1997, the Lincoln division has marketed the Ford Expedition as the Lincoln Navigator, the first full-size SUV sold by a luxury auto brand in North America (the Expedition was never sold as a Mercury). The third Ford vehicle to use the Expedition nameplat ...
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Range Rover
Range may refer to: Geography * Range (geographic), a chain of hills or mountains; a somewhat linear, complex mountainous or hilly area (cordillera, sierra) ** Mountain range, a group of mountains bordered by lowlands * Range, a term used to identify a survey township in the US * Rangeland, deserts, grasslands, shrublands, wetlands, and woodlands that are grazed by domestic livestock or wild animals Mathematics * Range of a function, a set containing the output values produced by a function * Range (statistics), the difference between the highest and the lowest values in a set * Interval (mathematics), also called ''range'', a set of real numbers that includes all numbers between any two numbers in the set * Column space, also called the ''range'' of a matrix, is the set of all possible linear combinations of the column vectors of the matrix * Projective range, a line or a conic in projective geometry * Range of a quantifier, in logic Music * Range (music), the distance ...
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