The Jaguar XJSc Convertible 4.0, produced between 1994 and 1996, represented the final iteration of the XJ-S (XJS) model line. This luxurious grand tourer, built upon the XJ-S platform (originally introduced in 1975), offered open-air motoring with the refinement and performance expected of a Jaguar. The 4.0-liter variant, equipped with a five-speed manual transmission, positioned itself as a driver-focused option within the XJSc range, appealing to enthusiasts who preferred a more engaging experience compared to the automatic versions. It was a relatively short-lived model, marking the end of an era for Jaguar’s long-running coupe and convertible.
Technical Specifications
| Brand | Jaguar |
| Model | XJS |
| Generation | XJSc Convertible |
| Type (Engine) | 4.0 (233 Hp) |
| Start of production | 1994 |
| End of production | 1996 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (combined) | 10.7 l/100 km |
| Fuel consumption (US mpg) | 22 |
| Fuel consumption (UK mpg) | 26.4 |
| Fuel consumption (km/l) | 9.3 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.9 sec |
| Acceleration 0 – 62 mph | 8.9 sec |
| Acceleration 0 – 60 mph | 8.5 sec |
| Maximum speed | 234 km/h (145.4 mph) |
| Weight-to-power ratio | 7.9 kg/Hp |
| Weight-to-torque ratio | 5 kg/Nm |
| Power | 233 Hp @ 4700 rpm |
| Power per litre | 58.5 Hp/l |
| Torque | 366 Nm @ 4000 rpm (269.95 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 3980 cm3 (242.87 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 91 mm (3.58 in.) |
| Piston Stroke | 102 mm (4.02 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated |
| Valvetrain | DOHC |
| Kerb Weight | 1830 kg (4034.46 lbs.) |
| Max. weight | 2180 kg (4806.08 lbs.) |
| Max load | 350 kg (771.62 lbs.) |
| Trunk (boot) space – minimum | 407 l (14.37 cu. ft.) |
| Fuel tank capacity | 89 l (23.51 US gal | 19.58 UK gal) |
| Length | 4820 mm (189.76 in.) |
| Width | 1793 mm (70.59 in.) |
| Height | 1279 mm (50.35 in.) |
| Wheelbase | 2588 mm (101.89 in.) |
| Front track | 1489 mm (58.62 in.) |
| Rear (Back) track | 1504 mm (59.21 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system), Hydraulic Steering |
| Tires size | 225/55 ZR16 |
Introduction
The XJSc Convertible 4.0, produced from 1994 to 1996, was a culmination of Jaguar’s efforts to modernize the XJ-S platform. The XJ-S had undergone significant changes throughout its lifespan, and the final convertibles benefited from the larger 4.0-liter inline-six engine. This engine, replacing the earlier 3.6-liter unit, provided a substantial increase in power and torque. The 4.0-liter manual transmission version was positioned as the enthusiast’s choice, offering a more direct connection to the car’s performance. It was built on the 1HX0/A3 platform, shared with the coupe version, and represented a final flourish for a model that had become synonymous with British luxury and grand touring.
Powertrain & Engine Architecture
The heart of the XJSc 4.0 was the Jaguar AJ6 inline-six engine. This 3,980cc (242.87 cu. in.) engine featured a cast iron block with an aluminum cylinder head, utilizing a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder. The engine employed multi-port fuel injection, managed by an electronic engine control unit (ECU), optimizing fuel delivery for both performance and efficiency. The 4.0-liter engine produced 233 horsepower at 4,700 rpm and 366 Nm (269.95 lb.-ft.) of torque at 4,000 rpm. The five-speed manual transmission, a Getrag unit, provided precise gear changes and allowed drivers to fully exploit the engine’s power. This manual gearbox was a key differentiator from the more common automatic transmissions offered in other XJSc variants.
Driving Characteristics
The XJSc 4.0 with a manual transmission offered a noticeably more engaging driving experience than its automatic counterparts. The five-speed gearbox allowed for precise control over the engine’s power band, making it feel more responsive and agile. While not a sports car in the modern sense, the XJSc 4.0 delivered strong acceleration – 0-60 mph in around 8.5 seconds – and a comfortable cruising speed. The inline-six engine provided a smooth and refined power delivery, with ample torque available throughout the rev range. The gear ratios were well-matched to the engine’s characteristics, providing strong pull in each gear. Compared to the 3.6-liter versions, the 4.0-liter felt significantly more powerful, and the manual transmission allowed drivers to maximize that power.
Equipment & Trim Levels
The XJSc Convertible 4.0 was well-equipped, reflecting its status as a luxury grand tourer. Standard features included leather upholstery, power-adjustable front seats, air conditioning, a premium sound system, and power windows and locks. The interior trim typically featured wood veneer accents, adding to the car’s luxurious ambiance. Optional extras included a sunroof, upgraded sound systems, and special paint colors. The convertible top was a fully automatic, lined fabric top, providing a quiet and comfortable cabin experience when raised. The dashboard layout was typical of the XJ-S, with a classic analog instrument cluster and a center console housing the audio system and climate controls.
Chassis & Braking
The XJSc Convertible 4.0 utilized a robust chassis with double wishbone suspension at both the front and rear. This suspension setup provided a comfortable ride while maintaining good handling characteristics. The car was equipped with ventilated disc brakes at the front and solid disc brakes at the rear, providing adequate stopping power for its weight and performance. Anti-lock braking system (ABS) was standard, enhancing safety and control during hard braking. Power steering, a hydraulic system, made the car easy to maneuver at low speeds. The relatively heavy curb weight of 1,830 kg (4,034.46 lbs) meant that the suspension was tuned for comfort rather than outright sportiness.
Market Reception & Comparison
The XJSc 4.0 manual was generally well-received by automotive critics, who praised its improved performance and engaging driving experience. It was seen as a fitting send-off for the XJ-S model line. Compared to the automatic versions, the manual transmission was favored by enthusiasts for its greater driver involvement. The 4.0-liter engine offered a significant improvement in fuel economy compared to earlier XJ-S models, although it still wasn’t particularly frugal at around 22 US mpg. Reliability was generally good, although the complex electrical systems of the XJ-S could sometimes present challenges. Compared to the 3.6-liter versions, the 4.0-liter offered a substantial performance upgrade for a relatively modest price increase.
Legacy
The Jaguar XJSc Convertible 4.0, particularly the manual transmission version, has become a sought-after classic among Jaguar enthusiasts. The 4.0-liter inline-six engine is known for its durability and smooth operation, and the manual transmission adds to the car’s appeal. While maintenance can be costly due to the car’s age and complexity, the XJSc 4.0 offers a unique blend of British luxury, performance, and open-air motoring. In the used car market today, well-maintained examples command a premium, reflecting their rarity and desirability. The XJSc 4.0 stands as a testament to Jaguar’s commitment to building elegant and capable grand tourers.

