1986-1988 Jaguar XJSc Convertible 3.6 (220 Hp)

The Jaguar XJSC Convertible 3.6, produced between 1986 and 1988, represented a significant evolution of the XJ-S lineage, offering open-air motoring with the luxury and performance Jaguar was renowned for. This variant, powered by the 3.6-liter inline-six engine, occupied a middle ground in the XJSC range, positioned above the earlier 3.0-liter models but below the later, more potent V12 versions. It was a key part of Jaguar’s attempt to modernize the XJ-S platform and broaden its appeal, particularly in the North American market where convertibles were increasingly popular. The XJSC, internally designated as Project Landaulet, aimed to combine the elegance of the coupe with the freedom of a convertible, a challenging design brief that resulted in a distinctive, though sometimes controversial, silhouette.

Technical Specifications

Powertrain & Engine Architecture

The heart of the XJSC 3.6 was Jaguar’s 3.6-liter inline-six engine, a development of the earlier 3.0-liter unit. This engine, internally known as the AJ6, featured a lightweight alloy cylinder head and block, contributing to its relatively compact size and weight. It utilized a single overhead camshaft (SOHC) design with two valves per cylinder. Fuel delivery was managed by Bosch Motronic fuel injection, a sophisticated system for its time that optimized fuel efficiency and performance. The engine produced 220 horsepower at 5,500 rpm and 230 lb-ft of torque at 3,800 rpm. The majority of XJSC 3.6 models were equipped with a Chrysler Torqueflite three-speed automatic transmission. This transmission, while reliable, was somewhat dated by the mid-1980s and lacked the sophistication of more modern automatic gearboxes. It was chosen for its robustness and ability to handle the engine’s torque, but it did contribute to slightly slower acceleration times compared to a manual transmission, had one been offered.

Driving Characteristics

The XJSC 3.6 offered a grand touring experience, prioritizing comfort and refinement over outright sporting performance. The automatic transmission provided smooth, if not particularly rapid, gear changes. The 3.6-liter engine delivered ample power for cruising, with a broad torque curve that made overtaking relatively effortless. However, the car’s weight – around 3,780 pounds – meant that acceleration wasn’t particularly brisk. Compared to the later V12 models, the 3.6 felt less urgent and responsive. The suspension, a double wishbone setup at the front and a live axle at the rear, provided a comfortable ride, absorbing bumps and imperfections in the road effectively. Steering was power-assisted, offering a light and easy feel, but lacked the precision and feedback of some contemporary sports cars. The automatic transmission’s gear ratios were geared towards relaxed cruising, rather than aggressive acceleration. First gear was relatively short, providing decent off-the-line acceleration, but subsequent gears were spaced to prioritize fuel economy and quiet operation at highway speeds.

Equipment & Trim Levels

The XJSC 3.6 Convertible was well-equipped for its time, reflecting Jaguar’s commitment to luxury. Standard features included leather upholstery, power windows, power steering, air conditioning, and a premium sound system. The interior was characterized by its wood veneer trim and elegant design. The convertible top was a manually operated soft top, requiring some effort to raise and lower. Optional extras included heated seats, a trip computer, and upgraded sound systems. Trim levels were relatively limited, with most customization options revolving around interior color schemes and exterior paint choices. The dashboard layout was typical of Jaguar in the 1980s, featuring a comprehensive array of gauges and controls, though some critics found it to be somewhat cluttered.

Chassis & Braking

The XJSC 3.6 utilized a monocoque chassis construction, providing a rigid and lightweight platform. The suspension system consisted of independent double wishbones at the front and a live axle with trailing arms at the rear. Anti-roll bars were fitted to both axles to reduce body roll during cornering. Braking was provided by disc brakes all around, though the rear discs were smaller than those at the front. Power assistance was standard. The braking system was generally effective, but lacked the advanced features such as ABS (Anti-lock Braking System) that were becoming increasingly common on other luxury cars of the era. The steering was a power-assisted rack and pinion system, offering a relatively light and easy steering feel.

Market Reception & Comparison

The XJSC 3.6 Convertible was generally well-received by critics, who praised its elegant styling, comfortable ride, and refined interior. However, the car was not without its detractors. Some critics found the styling of the convertible top to be awkward, and the performance was considered adequate but not exceptional, especially compared to the V12 models. Compared to the 3.0-liter XJSC, the 3.6 offered a noticeable improvement in performance, making it a more desirable option for those seeking a more engaging driving experience. Fuel economy was reasonable for a car of its size and engine displacement, averaging around 17 mpg in city driving and 23 mpg on the highway. Reliability was generally good, though the Chrysler Torqueflite automatic transmission could be prone to occasional issues. The XJSC 3.6 competed with other luxury convertibles of the era, such as the Mercedes-Benz SL and the Porsche 911 Cabriolet, but offered a different character, prioritizing comfort and style over outright sporting performance.

Legacy

The XJSC 3.6 Convertible remains a desirable classic car today, appreciated for its elegant styling and luxurious appointments. The 3.6-liter engine is generally considered to be reliable, though regular maintenance is essential to keep it running smoothly. Parts availability is generally good, though some specific components can be difficult to find. The car’s relatively simple mechanical design makes it relatively easy to maintain for experienced mechanics. The XJSC 3.6 represents a significant chapter in Jaguar’s history, showcasing the company’s commitment to luxury and performance. In the used car market, well-maintained examples of the XJSC 3.6 Convertible command respectable prices, reflecting their enduring appeal and classic status. The car’s blend of British elegance, American convenience (with the automatic transmission), and a robust inline-six engine has secured its place as a beloved classic among Jaguar enthusiasts.