The Jaguar XJ R 5.0 V8 (550 hp) Automatic, produced from 2015 to 2017, represents the pinnacle of performance within the X351 facelift generation of the XJ luxury sedan. This variant, positioned as the flagship model, combined a potent supercharged V8 engine with a sophisticated eight-speed automatic transmission, offering a blend of exhilarating acceleration and refined comfort. It was Jaguar’s direct competitor to the high-performance versions of the BMW 7 Series and Mercedes-Benz S-Class.
Technical Specifications
| Brand | Jaguar |
| Model | XJ |
| Generation | XJ (X351 facelift 2015) |
| Type (Engine) | R 5.0 V8 (550 Hp) Automatic |
| Start of production | 2015 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 16.2 l/100 km (14.5 US mpg, 17.4 UK mpg, 6.2 km/l) |
| Fuel consumption (extra urban) | 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg, 12.2 km/l) |
| Fuel consumption (combined) | 11.1 l/100 km (21.2 US mpg, 25.4 UK mpg, 9 km/l) |
| CO2 emissions | 264 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.6 sec |
| Acceleration 0 – 62 mph | 4.6 sec |
| Acceleration 0 – 60 mph | 4.4 sec |
| Maximum speed | 280 km/h (173.98 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.4 kg/Hp, 293.3 Hp/tonne |
| Weight-to-torque ratio | 2.8 kg/Nm, 362.7 Nm/tonne |
| Power | 550 Hp @ 6000-6500 rpm |
| Power per litre | 110 Hp/l |
| Torque | 680 Nm @ 3500-4000 rpm (501.54 lb.-ft. @ 3500-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 508PS |
| Engine displacement | 5000 cm3 (305.12 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 92.5 mm (3.64 in.) |
| Piston Stroke | 93 mm (3.66 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Supercharger, Intercooler |
| Engine oil capacity | 7.25 l (7.66 US qt | 6.38 UK qt) |
| Coolant | 8.6 l (9.09 US qt | 7.57 UK qt) |
| Kerb Weight | 1875 kg (4133.67 lbs.) |
| Max. weight | 2400 kg (5291.09 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5130 mm (201.97 in.) |
| Width | 1899 mm (74.76 in.) |
| Width including mirrors | 2105 mm (82.87 in.) |
| Height | 1460 mm (57.48 in.) |
| Wheelbase | 3032 mm (119.37 in.) |
| Front track | 1626 mm (64.02 in.) |
| Rear track | 1604 mm (63.15 in.) |
| Minimum turning circle | 11.9 m (39.04 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
INTRODUCTION
The XJ R 5.0 V8 Automatic, introduced as part of the X351 facelift in 2015, represented the highest performance tier of Jaguar’s flagship sedan. The X351 generation, launched in 2009, aimed to modernize the XJ while retaining its traditional luxury and refinement. The facelift brought updated styling, improved technology, and enhanced powertrain options. The ‘R’ designation signified the performance-oriented variant, boasting the most powerful engine available in the XJ lineup. This model year saw a continuation of Jaguar’s commitment to blending British luxury with sporting dynamics.
Powertrain & Engine Architecture
At the heart of the XJ R lay Jaguar’s 5.0-liter supercharged V8 engine, internally designated as the 508PS unit. This engine featured a Roots-type supercharger, providing instant boost and a broad torque curve. Direct fuel injection, combined with variable valve timing, optimized combustion efficiency and power delivery. The engine produced 550 horsepower at 6000-6500 rpm and a substantial 680 Nm (501.54 lb-ft) of torque between 3500 and 4000 rpm. This power was channeled through an eight-speed automatic transmission, developed in partnership with ZF. This transmission offered smooth, rapid shifts and contributed to the car’s impressive acceleration. The transmission was calibrated for both spirited driving and comfortable cruising, with manual shift control available via steering wheel-mounted paddles.
Driving Characteristics
The XJ R delivered a distinctly sporting driving experience for a full-size luxury sedan. The supercharged V8 provided effortless acceleration, with 0-60 mph achievable in around 4.4 seconds. The eight-speed automatic transmission was well-matched to the engine’s characteristics, providing quick and seamless gear changes. The suspension, tuned for performance, offered a firm yet controlled ride, minimizing body roll during cornering. While not as overtly aggressive as some sports sedans, the XJ R provided a confident and engaging driving experience. The rear-wheel-drive configuration contributed to a balanced feel, and the car’s weight distribution helped to maintain stability at high speeds. Compared to the standard XJ models with smaller engines, the R offered a significantly more responsive and dynamic driving experience.
Equipment & Trim Levels
The XJ R came standard with a comprehensive array of luxury features. Interior appointments included premium leather upholstery, wood veneer trim, and heated and ventilated front seats with massage function. Standard technology included a touchscreen infotainment system with navigation, a premium sound system, and a suite of driver-assistance features such as adaptive cruise control, lane departure warning, and blind-spot monitoring. Optional extras included a rear-seat entertainment system, upgraded leather options, and various cosmetic enhancements. The XJ R’s interior was designed to provide a luxurious and comfortable environment for both driver and passengers.
Chassis & Braking
The XJ R utilized a lightweight aluminum chassis, contributing to its relatively low weight for a vehicle of its size. The suspension system featured double wishbones at both the front and rear, providing a refined and controlled ride. The braking system consisted of ventilated discs on all four wheels, providing ample stopping power. The car was equipped with an advanced anti-lock braking system (ABS) and electronic stability control (ESC) to enhance safety and stability. The steering system was a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The XJ R was generally well-received by automotive critics, who praised its powerful engine, refined ride, and luxurious interior. However, some reviewers noted that its styling was somewhat conservative compared to its German rivals. Fuel economy was also a concern, given the car’s large engine and weight. Compared to the standard XJ models, the R offered a significant performance upgrade, but at a higher price point. It competed directly with the BMW 750i and Mercedes-Benz S550, offering a unique blend of British luxury and sporting dynamics. The XJ R’s reliability was generally considered to be good, although maintenance costs could be higher than those of some competitors.
Legacy
The Jaguar XJ R 5.0 V8 Automatic remains a desirable used car today, appealing to enthusiasts who appreciate its combination of performance, luxury, and British heritage. The supercharged V8 engine is known for its reliability, although regular maintenance is essential. The eight-speed automatic transmission has also proven to be durable. While fuel economy is not a strong point, the XJ R offers a unique and rewarding driving experience that sets it apart from more modern luxury sedans. Its classic styling and luxurious interior continue to attract buyers seeking a sophisticated and capable grand tourer.
