The Holden HQ series is a range of automobiles that was produced by Holden in Australia from 1971 to 1974. The HQ was released on 15 July 1971, replacing the Holden HG series.
It was the first ground up redesign of the Holden line since its original release in 1948, and included an all-new body, chassis, and... suspension. The HQ was later developed into a series of successor models, finally ending production when the WB series was discontinued in 1984.More
The second generation Mercedes-Benz SLK, internally designated model R171, is a two-passenger, front-engine, rear-drive, retractable hardtop roadster, unveiled at the 74th Geneva International Motor Show - and manufactured and marketed for model years 2004-2011. Currently in its third generation ...and manufactured at Mercedes' Bremen plant, the SLK nameplate designates Sportlich (sporty), Leicht (light), and Kurz (compact).
The R171 features a number of revisions compared to its predecessor, the R170: a 30mm longer wheelbase, increased length (72mm) and width (65mm), 40% increased use of high strength steel, seven-speed automatic transmission, adaptive two-stage airbags, head/thorax sidebags and a revised roof mechanism (marketed as the Vario roof) deployable in 22 seconds (previously 25 seconds) with a rotary-pivoting rear window enabling a more compact folded roof stack and trunk storage increased by 63 litres with the roof retracted. Optional features include remote operation of the retractable hardtop as well as an innovative forced air, neck-level heating system integral to the headrests, marketed as Airscarf.
The fully galvanized bodywork, which features 19 percent improvement in static bending and 46 percent improvement in torsional strength with the roof down, also features a 3% improvement in aerodynamic efficiency, with a Cd value of 0.32. The design has been aerodynamically optimized to minimize interior draughts with the top retracted and includes a fabric windblocker which can be pulled up over the two roll-over bars. Mercedes marketed the R171's tapering front end styling by designer Steve Mattin as "Formula One-inspired".
In 2008, the SLK reached sales of 500,000. The R171 made Car and Driver's Ten Best list for 2005 and won the Canadian Car of the Year Best New Convertible award.More
The Citroën ZX is a small family car produced by the French manufacturer Citroën between 1990 and 1998.
During the beginning of the 1990s, the ZX was Citroën's competitor in the class traditionally dominated in Europe by the Ford Escort and Vauxhall/Opel Astra, a market segment Citroën had briefly moved awa...y from with the demise of the GSA in 1986.
The BX had tried to address the small family car market and the large family car market by being 'between sizes' but well packaged. For 1993, the Citroën ZX chassis was also used for the Peugeot 306 which, with its attractive Peugeot 205 derived styling, was an even more successful car than its twin. The Citroën Berlingo and Peugeot Partner were also built on the same platform.
It was replaced by the Xsara in September 1997, but production in Europe continued until 1998. A saloon derivative, called the Citroën Elysée, along with the China based ZX known as the Fukang, continued to be produced for the Chinese market by the Dongfeng Peugeot-Citroën Automobile, a joint venture with the PSA Group.
The Citroën GS had been a ground breaking and radical new model in the small family car market on its launch in 1970, scooping the European Car of the Year award, and was facelifted in 1979 and gained a hatchback which saw it transformed into the GSA.
However, such was the success of the larger BX after its 1982 launch, that PSA decided to delay the launch of an immediate replacement for the GSA when it was finally discontinued in 1986. Development work began on a new C segment hatchback, which was originally expected to be launched as the Citroën FX at the beginning of the 1990s.
Although the Rally Raid version of the ZX debuted during 1990, the ZX was officially launched on the left hand drive continental markets on 16 March 1991, with British sales beginning in May that year, initially only with petrol engines. The diesel ZX went on sale later in 1991.
It went on sale in New Zealand in the beginning of 1993, as a five door in 1.6 Aura or Turbodiesel trim, with the naturally aspirated diesel and Volcane GTi (1.9) models joining a few weeks later. New Zealand's unleaded petrol was of a low octane rating, meaning that initially only uncatalyzed cars were on offer.
In January 1994, the estate of the ZX debuted, and went on sale in May, shortly followed by a mid cycle facelift.
The first examples of the ZX had been produced in 1990, with the three door Rally Raid model being the winner of the Paris-Dakar, which started just after Christmas. The first prototypes of the ZX had actually debuted at the Baja Aragon on 20 July 1990. Drag resistance ranged from Cx/Cds 0.30 to 0.33.
The launch of the ZX marked the return of Citroën into the C sector of the car market; it had discontinued the GSA in 1986 with no immediate replacement, largely due to the success of the larger BX. However, Citroën had decided to phase out the BX between 1990 and 1993, by at first launching a smaller model, and then adding a larger model (the Xantia) to its range.
The ZX's interior space and value received praise from critics and consumers. Of particular note was the rear seat arrangement; it was mounted on a sliding platform that allowed the seat to be moved rearwards to increase rear legroom, or forwards to increase cargo space. Unfortunately, only the seat backs folded down on models so fitted. Lower specification models with fully folding and removable seats had more ultimate capacity.
The ZX specification was good for its class, with most models getting power steering, electric windows, electric sunroof, a driver's side (and sometimes passenger's side) airbag and anti-lock braking system as either optional or standard equipment. It was competitively priced though, unlike the Mark III Volkswagen Golf, which was priced at a relative premium from its launch later in August 1991.
It also reached the market a few months before the new version of the Opel/Vauxhall Astra.
The familiar range of PSA powertrains drove the front wheels of a seemingly conventionally designed chassis. At the front was a standard MacPherson strut layout with anti-roll bar, while the rear used the PSA Peugeot-Citroën fully independent trailing arm/torsion bar set up that was first introduced on the estate of the Peugeot 305.
However, PSA's chassis engineers employed some unusual features, including passive rear wheel steering (by means of specially designed compliance bushes in the rear suspension), and in house developed and constructed shock absorbers. At high mileages, this is prone to wear off the axle mounting bushes, which is easily fixed.
It is also prone to wear in the rear axle trailing arm bearings, which then wear the trailing arm axle tubes, requiring an expensive rebuild or a replacement axle assembly.
The diesel and larger capacity petrol engines are canted as far back as possible in the engine bay, in an effort to put as much weight as possible behind the front axle line, also reducing the centre of gravity, while improving weight distribution and minimising understeer.
At the time of its launch, the ZX range consisted of a collection of four very individual trim levels; the base model was the "Reflex" aimed at young people, next was the "Avantage" aimed at families, and then there was the luxury "Aura" series. The final series was the relatively sporting "Volcane" series, with lowered (and hard) suspension. The "Volcane" TD was one of the first diesel hot hatches.
Over time, further models were introduced including the "Furio", a cheaper sports model, a 16 valve engined high performance derivative and many special editions.
The ZX was initially available as a three or five door hatchback, while a five door estate was added to the range in 1993. It was offered with petrol engines from 1.1 L to 2.0 L, as well as three 1.9 L diesel engines including a turbodiesel. However, the 1.1 petrol engine was never sold in Britain.