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65-569: Initially, the car was equipped with the smallest Fiat engine, air-cooled 479 cc, producing 15 PS (11 kW). In 1959, the engine power was increased to 16.5 PS (12.1 kW) and in 1960, the cabriolet version was launched. In the same year, the Trasformabile, whose engine cylinder capacity was increased to 499 cc and 17.5 PS (12.9 kW), was made available in a Special version with bicolour paint and an engine enhanced to 21 PS (15.4 kW). This body style featured

130-451: A car with permanent roof body style (such as four-door sedans ) are the vertical or nearly vertical supports of its window area or greenhouse —designated respectively as the A, B, C and (in larger cars such as 4-door station wagons and sport utility vehicles ) D-pillar, moving from front to rear, in profile view. Car pillars are vertical or inclined components of an enclosed automobile's body that both support its roof and reinforce

195-502: A four-leaf clover decal on the left side. The car is known for its tendency to become badly damaged throughout these stories. In the animation film Despicable Me 2 , the car of Lucy Wilde resembles a Bianchina Trasformabile. The car is owned and driven by Lolita Lobosco in the eponymous Italian detective series broadcast in the UK by Channel 4 in its Walter Presents series (S1 E2, 01:01:30). Pillar (car) The pillars on

260-409: A performance-based occupant-protection standard rather than one mandating a particular technical solution (which could rapidly become outdated and prove to not be a cost-effective approach). Less emphasis was placed on other designs as countries successfully mandated seat belt restrictions, however. The auto industry and research and regulatory communities have moved away from their initial view of

325-460: A pyrotechnic process designed to be used once as a supplemental restraint system for the vehicle's seat belt systems. Newer side-impact airbag modules consist of compressed-air cylinders that are triggered in the event of a side-on vehicle impact. The first commercial designs were introduced in passenger automobiles during the 1970s, with limited success and caused some fatalities. Broad commercial adoption of airbags occurred in many markets during

390-421: A ball-in-tube mechanism for crash detection. Under his system, an electromechanical sensor with a steel ball attached to a tube by a magnet would inflate an airbag in under 30 milliseconds. A small explosion of sodium azide was used instead of compressed air during inflation for the first time. Breed Corporation then marketed this innovation to Chrysler . A similar "Auto-Ceptor" crash-restraint, developed by

455-432: A crash, the vehicle's crash sensors provide crucial information to the airbag electronic controller unit (ECU), including collision type, angle, and severity of impact. Using this information, the airbag ECU's crash algorithm determines if the crash event meets the criteria for deployment and triggers various firing circuits to deploy one or more airbag modules within the vehicle. Airbag module deployments are activated through

520-493: A driver's airbag as an option, but by 1999, even side airbags were available on several variants. Audi was late to offer airbag systems on a broader scale, since even in the 1994 model year, its popular models did not offer airbags. Instead, the German automaker until then relied solely on its proprietary cable-based procon-ten restraint system. Variable force-deployment front airbags were developed to help minimize injury from

585-513: A fairly nondescript side view." Most conventional C-pillars are rearward sloping, but reverse-angled have been used to differentiate their designs. Because many modern cars are similar in side view, the designs of the C-pillar have "become an area for stylistic whimsy." Designs of the D-pillar typically found on station wagons and SUVs have also undergone a transition from function to more of

650-511: A fixed B-pillar and partial roof, like the rest of the opening was covered with a foldable fabric hood, while the Cabriolet version had no B-pillar. The Trasformabile was the only version to feature suicide doors , and in 1962, it was replaced by a four-seat saloon. The engine and chassis were the same in both. In 1965, a minor facelift was made and in the Berlina, the regular engine gained

715-682: A front center airbag; it deploys from the driver's seat. Hyundai Motor Group announced its development of a center-side airbag on September 18, 2019, installed inside the driver's seat. Some Volkswagen vehicles in 2022 equipped with center airbags include the ID.3 and the Golf . The Polestar 2 also includes a center airbag. With EuroNCAP updating its testing guidelines in 2020, European and Australian market vehicles increasingly use front-center airbags, rear torso airbags, and rear seat belt pre-tensioners. The second driver-side and separate knee airbag

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780-421: A greater hood to windshield angle as well as achieving a bigger field of view for the driver, but at the disadvantage of encroaching on interior space. The center B-pillar on four-door sedans (also known as a "post" ) is typically a closed steel structure welded at the bottom to the car's rocker panel and floorpan , as well as on the top to the roof rail or panel. This pillar provides structural support for

845-672: A half horsepower. In France, the various Bianchina models were sold under different names: the Berlina became the Lutèce , the Familiare the Texane , and the Cabriolet was marketed as the Eden Roc . The Bianchina was produced from 1957 to 1970, for a total volume of approximately 275,000. Source: Club Bianchina and Bianchina Classic Club Autobianchi also used the Bianchina name for

910-722: A knee and torso cushion while also having a dual-stage deployment dictated by force of the impact. The cars equipped with ACRS had lap belts for all seating positions, but lacked shoulder belts. Shoulder belts were already mandatory in the United States on closed cars without airbags for the driver and outer front passenger, but GM chose to market its airbags as a substitute for shoulder belts. Prices for this option on Cadillac models were US$ 225 in 1974, $ 300 in 1975, and $ 340 in 1976 (US$ 1,820 in 2023 dollars ). The early development of airbags coincided with international interest in automobile safety legislation. Some safety experts advocated

975-470: A new front passenger airbag technology. Developed by Autoliv and Honda R&D in Ohio, United States , this new airbag design features three inflatable chambers connected across the front by a "noninflatable sail panel." The two outer chambers are larger than the middle chamber. When the airbag deploys, the sail panel cushions the occupant's head from the impact of hitting the airbag, and the three chambers hold

1040-549: A side-curtain airbag deploying from the roof on the Progrés . In 1998, the Volvo S80 was given roof-mounted curtain airbags to protect both front and rear passengers. Curtain airbags were then made standard equipment on all new Volvo cars from 2000 except for the first-generation C70 , which received an enlarged side-torso airbag that also protects the head of front-seat occupants. The second-generation C70 convertible received

1105-636: A spring, bumper contact, or by the driver. Later research during the 1960s showed that compressed air could not inflate the mechanical airbags fast enough to ensure maximum safety, leading to the current chemical and electrical airbags. In patent applications, manufacturers sometimes use the term "inflatable occupant restraint systems". Hetrick was an industrial engineer and member of the United States Navy . His airbag design, however, only came about when he combined his experiences working with navy torpedoes with his desire to protect his family on

1170-612: A standard driver-side airbag. The first known collision between two airbag-equipped automobiles took place on 12 March 1990 in Virginia , USA. A 1989 Chrysler LeBaron crossed the center line and hit another 1989 Chrysler LeBaron in a head-on collision , causing both driver airbags to deploy. The drivers suffered only minor injuries despite extensive damage to the vehicles. The United States Intermodal Surface Transportation Efficiency Act of 1991 required passenger cars and light trucks built after 1 September 1998 to have airbags for

1235-457: A styling element. As crossover vehicles look similar, "the D-pillar is the only opportunity for any distinction." Airbag An airbag is a vehicle occupant-restraint system using a bag designed to inflate in milliseconds during a collision and then deflate afterwards. It consists of an airbag cushion, a flexible fabric bag, an inflation module, and an impact sensor. The purpose of

1300-467: A switch can disable the feature in case the driver wants to take the vehicle off-road. In 2009, Toyota developed the first production rear-seat center airbag designed to reduce the severity of secondary injuries to rear passengers in a side collision. This system deploys from the rear center seat first appearing in on the Crown Majesta . In late 2012, General Motors with supplier Takata introduced

1365-443: A unique steering wheel that contained the driver-side airbag. Two of these cars were crash tested after 20 years and the airbags deployed perfectly. An early example of the airbag cars survives as of 2009. GM's Oldsmobile Toronado was the first domestic U.S. vehicle to include a passenger airbag in 1973. General Motors marketed its first airbag modules under the "Air Cushion Restraint System" name, or ACRS. The automaker discontinued

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1430-597: Is credited independently to the American John W. Hetrick , who filed for an airbag patent on 5 August 1952, that was granted #2,649,311 by the United States Patent Office on 18 August 1953. German engineer Walter Linderer, who filed German patent #896,312 on 6 October 1951, was issued on 12 November 1953, approximately three months after American John Hetrick. The airbags proposed by Hetrick and Linderer were based on compressed air released by

1495-403: Is not related to active and passive safety , which are, respectively, systems designed to prevent collisions in the first place, and systems designed to minimize the effects of collisions once they occur. In this use, a car Anti-lock braking system qualifies as an active-safety device, while both its seat belts and airbags qualify as passive-safety devices. Terminological confusion can arise from

1560-499: The Autobianchi Bianchina Giardiniera . The 1966 movie How to Steal a Million with Audrey Hepburn and Peter O'Toole features Hepburn's character driving a red Autobianchi Bianchina cabriolet. Italian comedy character Ugo Fantozzi , created by Paolo Villaggio and protagonist of television monologues, short stories, and films, famously drives a white Bianchina, usually somewhat damaged and with

1625-565: The Chevrolet Onix , are often sold without airbags, as neither airbags nor automatic braking systems in new cars are compulsory in many Latin American countries. Some require the installation of a minimum of only two airbags in new cars which many in this market have. The Citroën C4 provided the first "shaped" driver airbag, made possible by this car's unusual fixed-hub steering wheel. In 2019, Honda announced it would introduce

1690-552: The Eaton, Yale & Towne company for Ford, was soon also offered as an automatic safety system in the United States, while the Italian Eaton-Livia company offered a variant with localized air cushions. In the early 1970s, General Motors began offering cars equipped with airbags, initially in government fleet-purchased 1973 Chevrolet Impala sedans. These cars came with a 1974-style Oldsmobile instrument panel and

1755-482: The Honda Legend . In 1988, Chrysler became the first United States automaker to fit a driver-side airbag as standard equipment, which was offered in six different models. The following year, Chrysler became the first US auto manufacturer to offer driver-side airbags in all its new passenger models. Chrysler also began featuring the airbags in advertisements showing how the devices had saved lives that helped

1820-475: The 2021 model year) for the Mercedes-Benz S-Class (W223) . The W223 S-Class is the first car equipped with rear seat airbags that use gas to inflate supporting structures that unfold and extend a bag that fills with ambient air, instead of conventional fully gas-inflated airbags that are widely used in automotive airbag systems. Essentially, two types of side airbags are commonly used today -

1885-565: The United States in the 1970s. When seat-belt usage rates in the country were quite low compared to modern-day, Ford built experimental cars with airbags in 1971. Allstate operated a fleet of 200 Mercury Montereys and showed the reliability of airbags as well as their operation in crash testing, which also was promoted by the insurance company in popular magazine advertisements. General Motors followed in 1973 using full-sized Chevrolet vehicles. The early fleet of experimental GM vehicles equipped with airbags experienced seven fatalities, one of which

1950-459: The United States were introduced in phases starting in 2009 that require enclosed passenger cars to be able to support from 1.5-times to 3.0-times the vehicle's unloaded weight on its roof while maintaining headroom (survival space) for occupants. This has meant designing thicker roof pillars that not only provide sufficient strength, but that also incorporate padding and accommodate airbags . However, because thicker A-pillars can somewhat limit

2015-536: The airbag as a seat-belt replacement, and the bags are now nominally designated as supplemental restraint systems ( SRS ) or supplemental inflatable restraints. In 1981, Mercedes-Benz introduced the airbag in West Germany as an option on its flagship saloon model, S-Class (W126) . In the Mercedes system, the sensors automatically tensioned the seat belts to reduce occupants' motion on impact and then deployed

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2080-610: The airbag is to provide a vehicle occupant with soft cushioning and restraint during a collision. It can reduce injuries between the flailing occupant and the vehicle's interior. The airbag provides an energy-absorbing surface between the vehicle's occupants and a steering wheel, instrument panel, body pillar , headliner, and windshield . Modern vehicles may contain up to ten airbag modules in various configurations, including driver, passenger, side-curtain, seat-mounted, door-mounted, B and C-pillar mounted side-impact, knee bolster, inflatable seat belt, and pedestrian airbag modules. During

2145-585: The airbag itself. The emergence of the airbag has contributed to a sharp decline in the number of deaths and serious injuries on the roads of Europe since 1990, and by 2010, the number of cars on European roads lacking an airbag represented a very small percentage of cars, mostly the remaining cars dating from the mid-1990s or earlier. Many new cars in Latin America, including the Kia Rio , Kia Picanto , Hyundai Grand i10 , Mazda 2 , Chevrolet Spark and

2210-453: The airbag on impact. This integrated the seat belts and the airbag into a restraint system, rather than the airbag being considered an alternative to the seat belt. In 1987, the Porsche 944 Turbo became the first car to have driver and passenger airbags as standard equipment. The Porsche 944 and 944S had this as an available option. The same year also had the first airbag in a Japanese car,

2275-618: The airbag to its model ranges in 1992. Citroën , Fiat , Nissan , Hyundai , Peugeot , Renault , and Volkswagen followed shortly afterwards. By 1999, finding a new mass-market car without an airbag at least as optional equipment was difficult, and some late 1990s products, such as the Volkswagen Golf Mk4 , also featured side airbags. The Peugeot 306 is one example of the European automotive mass-market evolution: starting in early 1993, most of these models did not even offer

2340-469: The airbag was installed in a few experimental Ford cars. In 1964, a Japanese automobile engineer, Yasuzaburou Kobori (小堀保三郎), started developing an airbag "safety net" system. His design harnessed an explosive to inflate an airbag, for which he was later awarded patents in 14 countries. He died in 1975, before seeing the widespread adoption of airbag systems. In 1967, a breakthrough in developing airbag crash sensors came when Allen K. Breed invented

2405-598: The backrest of the front seats and protect the head and the torso. In 1997, the BMW 7 Series and 5 Series were fitted with tubular-shaped head side airbags (inflatable tubular structure), the "Head Protection System (HPS)" as standard equipment. This airbag was designed to offer head protection in side impact collisions and also maintained inflation for up to seven seconds for rollover protection. However, this tubular-shaped airbag design has been quickly replaced by an inflatable 'curtain' airbag. In May 1998, Toyota began offering

2470-635: The curtain airbags are programmed to deploy during some/all frontal impacts to manage passenger kinetics (e.g. head hitting B-pillar on the rebound), especially in offset crashes such as the IIHS's small overlap crash test. Roll-sensing curtain airbags are designed to stay inflated for a longer duration of time, cover a larger proportion of the window, and be deployed in a roll-over crash. They offer protection to occupants' heads and help to prevent ejection. SUVs and pickups are more likely to be equipped with RSCAs due to their higher probability of rolling over and often

2535-433: The door. These airbags are designed to reduce the risk of injury to the pelvic and lower abdomen regions. Most vehicles are now being equipped with different types of designs, to help reduce injury and ejection from the vehicle in rollover crashes. More recent side-airbag designs include a two-chamber system; a firmer lower chamber for the pelvic region and softer upper chamber for the ribcage. Swedish company Autoliv AB

2600-581: The driver and the front passenger. In the United States, NHTSA estimated that airbags had saved over 4,600 lives by 1 September 1999; however, the crash deployment experience of the early 1990s installations indicated that some fatalities and serious injuries were in fact caused by airbags. In 1998, NHTSA initiated new rules for advanced airbags that gave automakers more flexibility in devising effective technological solutions. The revised rules also required improved protection for occupants of different sizes regardless of whether they use seat belts, while minimizing

2665-460: The driver's forward field of vision and thus create blind spots , some designs employ slimmer, chamfered A-pillars made of stronger alloy steel on each side of the windshield to help improve driver vision while still meeting safety standards and offering crash protection. One of the important design elements of modern cars is the A-pillar because its location and angle impact the shape of

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2730-412: The driver's knees and legs and a knee airbag worked well." Since then certain models have also included front-passenger knee airbags, which deploy near or over the glove compartment in a crash. Knee airbags are designed to reduce leg injury. The knee airbag has become increasingly common since 2000. In 2008, the new Toyota iQ microcar featured the first production rear-curtain shield airbag to protect

2795-426: The fact that passive devices and systems—those requiring no input or action by the vehicle occupant—can operate independently in an active manner; an airbag is one such device. Vehicle safety professionals are generally careful in their use of language to avoid this sort of confusion. However, advertising principles sometimes prevent such semantic caution in the consumer marketing of safety features. Further confusing

2860-455: The first SUV to offer a driver-side airbag when it was launched in 1992. Driver and passenger airbags became standard equipment in all Dodge Intrepid , Eagle Vision , and Chrysler Concorde sedans ahead of any safety regulations. Early 1993 saw the 4-millionth airbag-equipped Chrysler vehicle roll off the assembly line. In October 1993, the Dodge Ram became the first pickup truck with

2925-502: The front door window and windshield, and sometimes found in the rear, usually fixed) are not considered roof pillars. Body pillars are critical in providing strength to an automobile body. As the most costly body components to develop or re-tool, a vehicle's roof and door design are a major factor in meeting safety and crash standards. Before safety standards, pillars were typically thin. The design of body pillars has changed with regulations that provide roof crush protection. Standards in

2990-467: The front of the car and the overall shape of modern vehicles or what designers call "volume." For example, more forward positioned A-pillars provide for increased interior room and make for less angle and visual difference between the hood and windshield. This arrangement makes the side view of a car look aerodynamic. The A-pillars that are positioned further back on a vehicle are most often found on rear-wheel drive and SUV models. This arrangement provides

3055-429: The late 1970s (1978 being the last year of pillarless hardtop cars in the U.S. domestic market), the full-size Chrysler Newport and New Yorker were the last designs with opening front and rear side windows and no B-pillar. The C-pillar is the rearmost on two- and four-door sedans and hatchbacks, and has served as an opportunity for automobile designers "to introduce a little 'design flair' to what would otherwise be

3120-450: The late 1980s and early 1990s. Many modern vehicles now include six or more units. Airbags are considered "passive" restraints and act as a supplement to "active" restraints. Because no action by a vehicle occupant is required to activate or use the airbag, it is considered a "passive" device. This is in contrast to seat belts , which are considered "active" devices because the vehicle occupant must act to enable them. This terminology

3185-639: The occupant's head in place, like a catcher's mitt. The goal of the tri-chamber airbag is to help "arrest high-speed movement" of the head, thereby reducing the likelihood of concussion injuries in a collision. The first vehicle to come with the tri-chamber airbag installed from the factory was in 2020 (for the 2021 model year) for the Acura TLX . Honda hopes that the new technology will soon make its way to all vehicles. Mercedes began offering rear passengers protection in frontal collisions in September 2020 (for

3250-399: The option for its 1977 model year , citing a lack of consumer interest. Ford and GM then spent years lobbying against air-bag requirements, claiming that the devices were unfeasible and inappropriate. Chrysler made driver-side airbags standard on 1988 and 1989 models, but airbags did not become widespread in American cars until the early 1990s. Airbags for passenger cars were introduced in

3315-596: The pillar-less designs with a rigid B-pillar such as the two-door AMC Matador line. To continue capitalizing on the popularity of the design, General Motors attempted to broaden the definition of "hardtop" during the early 1970s to include models with a B-pillar, with the false rationale, "up to then, everybody thought a hardtop was a car without a center pillar." The "Colonnade" mid-sized General Motors models were so named because of their pillared structure designed to meet new rollover protection standards, but marketers attempted to promote them as if they were true hardtops. By

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3380-456: The public know the value of them and safety became a selling advantage in the late 1980s. All versions of the Chrysler minivans came with airbags starting for the 1991 model year. In 1993, The Lincoln Motor Company boasted that all vehicles in their model line were equipped with dual airbags, one for the driver's side and another for the passenger's side. The 1993 Jeep Grand Cherokee became

3445-512: The rear occupants' heads in the event of a rear-end impact. Another feature of the Toyota iQ was a seat-cushion airbag in the passenger seat to prevent the pelvis from diving below the lap belt during a frontal impact or submarining. Later Toyota models such as the Yaris added the feature to the driver's seat, as well. The seat-belt airbag is designed to better distribute the forces experienced by

3510-420: The risk to infants, children, and other occupants caused by airbags. In Europe , airbags were almost unheard of until the early 1990s. By 1991, four manufacturers – BMW , Honda , Mercedes-Benz, and Volvo – offered the airbag on some of their higher-end models, but shortly afterward, airbags became a common feature on more mainstream cars, with Ford and Vauxhall / Opel among the manufacturers to introduce

3575-423: The road. Despite working with the major automobile manufacturers of his time, Hetrick was unable to attract investment. Although airbags are now required in every automobile sold in the United States, Hetrick's 1951 patent filing serves as an example of a "valuable" invention with little economic value to its inventor. Its first commercial use was not implemented until after the patent expired in 1971, at which point

3640-585: The second row of seating. Additional doors beyond four, such as on limousines , will create corresponding B-pillars, numbered by order B1, B2, etc.. Closed vehicles without a B-pillar are widely called hardtops and have been available in two- or four-door body styles, in sedan, coupe, and station wagon versions. Designs without a "B" pillar for roof support behind the front doors and rear side windows offer increased occupant visibility, while in turn requiring underbody strengthening to maintain structural rigidity. The need for stronger roof structures meant replacing

3705-542: The side-torso airbag and the side-curtain airbag. More recently, center airbags are becoming more common in the European market. Most vehicles equipped with side-curtain airbags also include side-torso airbags. However, some, such as the Chevrolet Cobalt , 2007–09 model Chevrolet Silverado/GMC Sierra , and 2009–12 Dodge Ram do not feature the side-torso airbag. From around 2000, side-impact airbags became commonplace on even low- to mid-range vehicles, such as

3770-525: The smaller-engined versions of the Ford Fiesta and Peugeot 206 , and curtain airbags were also becoming regular features on mass-market cars. The Toyota Avensis , launched in 2003, was the first mass-market car to be sold in Europe with nine airbags. Side-impact airbags or side-torso airbags are a category of airbags usually located in the seat or door panel, and inflate between the seat occupant and

3835-472: The terminology, the aviation safety community uses the terms "active" and "passive" in the opposite sense from the automotive industry. The airbag "for the covering of aeroplane and other vehicle parts" traces its origins to a United States patent, submitted in 1919 by two dentists from Birmingham , Arthur Parrott and Harold Round. The patent was approved in 1920. Air-filled bladders were in use as early as 1951. The airbag specifically for automobile use

3900-529: The torsional rigidity of the body. An alphabetical convention for designating a car's pillars has developed over time, used variously by the automotive press in describing and reviewing vehicles, insurance companies in identifying damaged components, and first-responder rescue teams to facilitate communication, as when using the jaws of life to cut their way into a wreck. The letters A, B, C, and D are used (in upper case): Posts for quarter windows (a smaller typically opening window on older vehicles between

3965-492: The vehicle's roof panel and is designed for latching the front door and mounting the hinges for the rear doors. As "perhaps the most complex of all the structures on the vehicle", the B-pillar may be a multi-layered assembly of various lengths and strengths. B-pillars also exist as integral elements of an automobile unibody on two-door sedans and hatchbacks, separating the front door from either fixed or movable glass of

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4030-428: The world's first door-mounted, side-curtain airbags that deployed upwards. Curtain airbags have been said to reduce brain injury or fatalities by up to 45% in a side impact with an SUV. These airbags come in various forms (e.g., tubular, curtain, door-mounted) depending on the needs of the application. Many recent SUVs and MPVs have a long inflatable curtain airbag that protects all rows of seats. In many vehicles,

4095-452: Was granted a patent on side-impact airbags, and they were first offered as an option in 1994 on the 1995 Volvo 850 , and as standard equipment on all Volvo cars made after 1995. In 1997, Saab introduced the first combined head and torso airbags with the launch of the Saab 9-5 . Some cars, such as the 2010 Volkswagen Polo Mk.5 have combined head- and torso-side airbags. These are fitted in

4160-485: Was later suspected to have been caused by the airbag. In 1974, GM made its ACRS system (which consisted of a padded lower dashboard and a passenger-side air bag) available as a regular production option (RPO code AR3) in full-sized Cadillac, Buick and Oldsmobile models. The GM cars from the 1970s equipped with ACRS had a driver-side airbag, and a driver-side knee restraint. The passenger-side airbag protected both front passengers, and unlike most modern systems, integrated

4225-538: Was used in the Kia Sportage SUV and has been standard equipment since then. The airbag is located beneath the steering wheel. The Toyota Caldina introduced the first driver-side SRS knee airbag on the Japanese market in 2002. Toyota Avensis became the first vehicle sold in Europe equipped with a driver's knee airbag. The EuroNCAP reported on the 2003 Avensis, "There has been much effort to protect

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