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, a convertible variant, offered a blend of British elegance and performance. It sat at the top of the XJS range, offering the most powerful engine option available. The XJSc was a significant vehicle for Jaguar, representing a last hurrah for a design that had evolved over two decades, and bridging the gap to the newer, more technologically advanced models that would follow. It was built on the XJ-S platform, internally designated as the XJ40, and continued the tradition of Jaguar convertibles, offering an open-air driving experience with a focus on comfort and style.
Technical Specifications
| Brand | Jaguar |
| Model | XJS |
| Generation | XJSc Convertible |
| Type (Engine) | 4.0 (233 Hp) Automatic |
| 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 US mpg |
| Fuel consumption (UK mpg) | 26.4 UK mpg |
| Fuel consumption (km/l) | 9.3 km/l |
| 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 |
| Hp/tonne | 127.3 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm |
| Nm/tonne | 200 Nm/tonne |
| 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 engine |
| 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 | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Power steering | Hydraulic Steering |
| Tires size | 225/55 ZR16 |
Powertrain & Engine Architecture
The XJSc Convertible 4.0 was powered by Jaguar’s 4.0-liter inline-six cylinder engine, designated as the AJ6. This engine represented a significant upgrade over the earlier 3.6-liter versions. It featured a multi-port fuel injection system and a double overhead camshaft (DOHC) valvetrain, contributing to its increased power output of 233 horsepower and 366 Nm (269.95 lb-ft) of torque. The engine’s inline configuration provided a smooth power delivery, characteristic of Jaguar’s six-cylinder engines. The 4-speed automatic transmission, a Chrysler Torqueflite unit, was the sole transmission option for this model. While reliable, it wasn’t known for its particularly quick shifts compared to more modern automatics. The engine was longitudinally mounted, driving the rear wheels, a configuration consistent with Jaguar’s traditional grand touring philosophy.
Driving Characteristics
The 4.0-liter engine and automatic transmission combination in the XJSc offered a comfortable and refined driving experience. Acceleration from 0-60 mph took approximately 8.5 seconds, and it could reach a top speed of 145.4 mph. While not a sports car, the XJSc provided ample power for effortless cruising and overtaking. The automatic transmission, while smooth, did detract slightly from the overall performance feel compared to the manual transmission options available in other XJS models. The gear ratios were tuned for comfort and fuel economy rather than outright acceleration. The car’s weight of around 4034 lbs meant that it wasn’t particularly nimble, but the suspension provided a good balance between ride comfort and handling.
Equipment & Trim Levels
The XJSc Convertible 4.0 was a well-equipped vehicle, reflecting its position as the flagship XJS model. Standard features included leather upholstery, power-adjustable front seats, air conditioning, a premium sound system, and power windows and locks. The interior trim was typically finished in wood veneer, adding to the luxurious ambiance. Optional extras included a self-leveling suspension, a more powerful audio system, and upgraded leather options. The convertible top was a fully automatic, lined fabric top, designed for quiet operation and weather protection. The dashboard layout was classic Jaguar, with analog gauges and a wood-trimmed center console.
Chassis & Braking
The XJSc Convertible utilized a double wishbone suspension system at both the front and rear, providing a comfortable ride and reasonable handling. The front brakes were ventilated discs, while the rear brakes were solid discs. An anti-lock braking system (ABS) was standard, enhancing safety. The steering was hydraulic power-assisted, offering a light and responsive feel. The car rode on 225/55 ZR16 tires, providing a good balance of grip and ride comfort. The chassis was a monocoque construction, providing a rigid and safe platform for the vehicle.
Market Reception & Comparison
The XJSc Convertible 4.0 was generally well-received by critics, who praised its luxurious interior, comfortable ride, and powerful engine. However, some criticized the car’s weight and the relatively slow shifts of the automatic transmission. Compared to the XJS Coupe with the 4.0-liter engine and manual transmission, the convertible was slightly slower and less agile. The 4.0-liter engine was a significant improvement over the earlier 3.6-liter versions, offering more power and torque. Fuel economy was typical for a vehicle of this type, averaging around 22 mpg. Reliability was generally good, although the complex electrical systems could sometimes be prone to issues.
Legacy
The Jaguar XJSc Convertible 4.0 represents a significant chapter in Jaguar’s history. It was the last of the XJ-S line, and a final expression of a classic British grand touring design. While the automatic transmission isn’t considered the most desirable configuration by enthusiasts, the 4.0-liter engine provides ample power and a smooth driving experience. Today, the XJSc Convertible 4.0 is a sought-after classic car, appreciated for its style, luxury, and performance. Well-maintained examples command a premium in the used car market. The engine, while aging, is generally considered reliable if properly maintained, and parts availability is reasonable. The XJSc remains a testament to Jaguar’s commitment to building elegant and refined automobiles.
