Jaguar XJ6 |
|
| Manufacturer | Jaguar Cars |
|---|---|
| Production | 1986-1994 |
| Assembly | Coventry, England |
| Predecessor | Jaguar XJ (Series) |
| Successor | Jaguar XJ (X300) |
| Class | Luxury vehicle |
| Body style | 4-door sedan |
| Layout | FR layout |
| Engine | 2.9L AJ6 I6 3.2L AJ6 I6 3.6L AJ6 I6 4.0L AJ6 I6 6.0L Jaguar V12 |
| Transmission | 4-speed automatic ZF 4HP24 4-speed automatic GM 4L80-E 5-speed manual Getrag 265 / 290 |
| Wheelbase | 113 in (2,900 mm) |
| Length | 196.4 in (4,990 mm) |
| Width | 79 in (2,000 mm) |
| Height | 54.25 in (1,378 mm) |
| Curb weight | 3,792 lb (1,720 kg) - 3,902 lb (1,770 kg) |
The Jaguar XJ (XJ40) is a luxury sedan manufactured by Jaguar Cars between 1986 and 1994. It was an all-new redesign of the XJ to replace the Series III, although the two model ranges were sold concurrently until the Series III was discontinued in 1992. The XJ40 used the Jaguar independent rear suspension arrangement, and featured a number of technological enhancements (such as electronic instrumentation).[1]
The 1993 XJ6 earned the title of "Safest Car in Britain" as the result of a government survey.[2] When the XJ40 was discontinued in 1994, it was followed by the X300 platform XJ.
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Throughout the 1970s Jaguar had been developing "Project XJ40", which was an all-new model intended to replace the original XJ6. Scale models were being built as early as 1972. Due to the 1973 oil crisis and problems at parent company British Leyland, the car was continually delayed. Proposals from both Jaguar's in-house designers and Pininfarina were received. Eventually, it was decided an internal design would be carried through to production, and, in February 1981, the British Leyland board approved ₤80 million to produce the new car. However, by the launch, over ₤200 million had been invested.
| Area | Amount |
|---|---|
| XJ40 R&D model | ₤50 million |
| Tooling at Austin-Rover and other component suppliers | ₤70 million |
| Building work and new transfer line for the AJ6 engine at Radford | ₤35 million |
| Building work for the manufacture of axles at Radford | ₤10 million |
| Paint facilities at Castle Bromwich | ₤25 million |
| Pilot assembly plant at Browns Lane | ₤10 million |
During development, the XJ40 pioneered significant improvements to the way Jaguar designed, built, and assembled cars. Among these improvements was a 25% reduction in the number of bodywork panels required per car (e.g. three pressings needed for Series 3 door compared with one pressing for XJ40 door), resulting in not only a more efficient assembly process, but also a weight saving and a stiffier structure. Greater attention to panel gaps improved the drag factor (reduced from 0.849 Cd to 0.762 Cd), while also improving the fuel economy and lowering wind noise inside the cabin.
The XJ40 became the most-tested car at Jaguar, completing 1,240,000 miles (2,000,000 km) in Arizona (summer heat testing), 1,100,000 miles (1,800,000 km) in Canada (winter testing), 1,800,000 miles (2,900,000 km) in Australia (heat and dust testing), in addition to 750,000 miles (1,210,000 km) on the high-speed Nardo circuit in Italy and other general road tests.
Initially, only two engines were offered across the XJ40 models: a 2.9L and a 3.6L version of the AJ6 inline-six. In 1990, these were changed to 3.2L and 4.0L versions. In 1993, the XJ12 and Daimler Double Six (both equipped with the Jaguar V12 engine) were added to the available models.
During the development of the XJ40, British Leyland had considered providing the Rover V8 engine for the car, which would have eliminated the need for future Jaguar engine production. The XJ40 bodyshell was allegedly engineered to prevent fitting V-configuration engines such as the Rover V8; this delayed the introduction of the V12-powered XJ12 until 1993.[1]
The automatic gearbox used in the six-cylinder cars was the four-speed ZF 4HP24. A stronger automatic gearbox was required for the V12-equipped cars, and the four-speed GM 4L80-E was selected. The manual gearbox fitted to early cars was the five-speed Getrag 265, while later cars received the Getrag 290.
The automatic transmission selector was redesigned to allow the manual selection of forward gears without accidentally selecting neutral or reverse. This new feature was dubbed the "J-Gate" and has carried over to more recent Jaguar models.
The curvaceous lines of the outgoing Series XJ were replaced by the more angular, geometric shape of the XJ40. The nose of the car would accommodate either matched pairs of round headlights, or rectangular single units; the latter were fitted to the higher-specification Sovereign and Daimler trim levels, and also to all cars for the US market.
The bumper is a visually distinct black-rubber-covered bar that runs the full width of the car and incorporates the sidelights and indicator lights. The bonnet is hinged at the front. Window frames are either chromed or black, depending on model. Rain gutters, door mirrors, and door handles are also finished in chrome. All XJ40s have a chrome surround for the windscreen and a single windscreen wiper.
Early low-specification cars were fitted with metric-sized steel wheels and plastic wheelcovers. From 1991, the wheels were changed to non-metric sizing.
The interior of the XJ40 was trimmed with either walnut or rosewood, and either cloth or leather upholstery (depending on model.)
Until 1990, cars were fitted with an instrument binnacle that used digital readouts. Instrumentation included a display named the "Vehicle Condition Monitor" (VCM), which contained a 32x32 dot-matrix screen capable of 34 functions. The VCM was able to alert the driver of bulb failure, brake pad wear, unlatched doors/boot, and low coolant level. From 1990 on, the binnacle was redesigned to use analog gauges.
Early cars used a two-spoke steering wheel that was later changed for a four-spoke airbag-equipped wheel. The glovebox was removed on later cars because of the space occupied when the passenger-side airbag was introduced. Some XJ40s bound for the United States were fitted with automatic seat belts.
The base XJ6 of the model range was modestly equipped; extra-cost options included alloy wheels, anti-lock brakes, air conditioning, leather upholstery, and an automatic transmission. The exterior featured two pairs of circular headlamps and black powder-coated window frames.
The Sovereign model came equipped with significantly more features than the base XJ6. Included was air conditioning, headlamp washers, a six-speaker sound system, rear adjustable suspension, and ABS. The headlamps fitted were the rectangular single units. The window frames were chrome-plated.
Late in the XJ40 run, in 1993, Jaguar introduced the Sport model. It was available only with the six-cylinder engine, and featured rosewood interior trim (as opposed to the walnut trim of other models.) Both the door mirrors and radiator grill vanes were color-keyed to the body, which was decorated with twin coachlines. Wider-profile tires were fitted, mounted on five-spoke alloy wheels.
A long-wheelbase model named the "Majestic" was introduced in 1994, although it was only available as a special order from Jaguar.
The Gold model was introduced in 1994 with a limited set of features and options, and for a modest price. It was available in fewer exterior colors than other models, and was identified by a gold-plated badge on the boot and gold growler badge at the top of the radiator grille. Gold cars were fitted with the "Kiwi" style wheels and painted with twin coachlines.
The XJR, introduced in 1988, was a high-performance model that was finished by the Oxfordshire-based JaguarSport company. It was fitted with stiffer suspension, improved brakes, and special exterior paint and exterior styling touches. The engine was a 3.6L unit tuned for slightly more power.
The XJR differed cosmetically from other XJ40 models with its body-colored bumper bars, black-painted radiator grille vanes, and either flat Speedline alloy wheels or ventilated wheels. The door sills were extended with fiberglass mouldings. The interior featured a leather MOMO steering wheel, leather shift knob, and "XJR" embossed seat headrests.
Given the model code "XJ81", the XJ40-based XJ12 was introduced in 1993 and powered by a 6.0L version of Jaguar's V12 engine. It could be identified by the "XJ12" badge on the rear and a "V12" emblem on the glovebox. The XJ12 used the two twin-headlamp pairs, black radiator grille vanes, and a gold "growler" badge on the radiator grille top. Early cars used chrome-plated window frames; on later cars, these were changed to black.
The Daimler-branded cars represented the highest trim level, and were sold as the "Vanden Plas" model (still under the Jaguar name) in other markets such as the United States. Like the Sovereign, it was fitted with the single rectangular headlamps. Cosmetically, it differed from other models with its fluted radiator grille surround and boot-lid plinth.
| Model | Production | Price new (£) |
|---|---|---|
| 2.9 | 11,191 | 16,495 |
| 2.9 Sovereign | 2,957 | 22,995 |
| 3.6 standard | 9,349 | 18,495 |
| 3.6 Sovereign | 49,941 | 24,995 |
| 3.6 (US market) | 13,319 | |
| 3.6 Daimler | 10,313 | 28,495 |
| 3.2 | 13,056 | 26,200 |
| 3.2 Sport | 3,117 | 29,950 |
| 3.2 Gold | 1,499 | 28,450 |
| 3.2 Sovereign | 3,491 | 34,550 |
| 4.0 | 13,858 | 25,200 |
| 4.0 Sport | 500 | 34,950 |
| 4.0 Gold | 23 | 28,950 |
| 4.0 Sovereign | 50,409 | 32,500 |
| 4.0 (US market) | 12,864 | |
| 4.0 Daimler | 8,876 | 36,500 |
| XJ6 LWB | 67 | 52,700 |
| XJ12 | 1,565 | 46,600 |
| XJ12 (export) | 1,325 | |
| Daimler Double Six | 1,102 | 51,700 |
| XJ12 LWB | 101 | |
| V12 Majestic | 50 | |
| Prototypes | 33 | |
| Total | 208,733 |