The Jaguar XK R Convertible, specifically the facelifted version produced from 2009 to 2011, represents the pinnacle of performance within the X150 XK Convertible range. Positioned as the flagship model, it combined the luxurious open-top experience of the XK with the potent power of Jaguar’s supercharged 5.0-liter V8 engine. This variant catered to drivers seeking a grand touring experience with exhilarating acceleration and a distinctive British aesthetic. The X150 platform, introduced in 2006, was a significant departure from its predecessor, utilizing aluminum construction to reduce weight and improve rigidity, setting a new standard for Jaguar’s convertible offerings.
Technical Specifications
| Brand | Jaguar |
| Model | XK |
| Generation | XK Convertible (X150, facelift 2009) |
| Type (Engine) | R 5.0 V8 (510 Hp) Automatic |
| Start of production | 2009 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 18.9 l/100 km (12.4 US mpg, 14.9 UK mpg, 5.3 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 8.6 l/100 km (27.4 US mpg, 32.8 UK mpg, 11.6 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 12.3 l/100 km (19.1 US mpg, 23 UK mpg, 8.1 km/l) |
| CO2 emissions (NEDC) | 292 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 250 km/h (155.34 mph) – Electronically limited |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 3.5 kg/Hp, 283.3 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 347.2 Nm/tonne |
| Power | 510 Hp @ 6000-6500 rpm |
| Power per litre | 102 Hp/l |
| Torque | 625 Nm @ 2500-5500 rpm (460.98 lb.-ft. @ 2500-5500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | AJ133 |
| 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 |
| Valvetrain | DOHC |
| Engine oil capacity | 7.25 l (7.66 US qt, 6.38 UK qt) |
| Coolant | 10 l (10.57 US qt, 8.8 UK qt) |
| Kerb Weight | 1800 kg (3968.32 lbs.) |
| Max. weight | 2185 kg (4817.1 lbs.) |
| Max load | 385 kg (848.78 lbs.) |
| Trunk (boot) space – minimum | 200 l (7.06 cu. ft.) |
| Trunk (boot) space – maximum | 313 l (11.05 cu. ft.) |
| Fuel tank capacity | 70.6 l (18.65 US gal, 15.53 UK gal) |
| Length | 4794 mm (188.74 in.) |
| Width with mirrors folded | 1892 mm (74.49 in.) |
| Width including mirrors | 2028 mm (79.84 in.) |
| Height | 1329 mm (52.32 in.) |
| Wheelbase | 2752 mm (108.35 in.) |
| Ride height (ground clearance) | 100 mm (3.94 in.) |
| Minimum turning circle | 10.9 m (35.76 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Double wishbone, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size (Front) | 245/40 R19; 255/35 R20 |
| Tires size (Rear) | 275/35 R19; 285/30 R20 |
| Wheel rims size (Front) | 8.5J x 19; 8.5J x 20 |
| Wheel rims size (Rear) | 9.5J x 19; 9.5J x 20 |
Powertrain & Engine Architecture
The heart of the XK R Convertible is Jaguar’s AJ133 5.0-liter supercharged V8 engine. This engine, a cornerstone of Jaguar performance for many years, utilizes a Roots-type supercharger with an intercooler to deliver substantial power and torque. The engine features direct fuel injection, optimizing combustion efficiency and responsiveness. The valvetrain is a double overhead camshaft (DOHC) design with four valves per cylinder, contributing to its high-revving nature. The engine’s aluminum block and cylinder heads further reduce weight. The six-speed automatic transmission, sourced from ZF, is calibrated for smooth shifts and responsive performance. It features a ‘Sport’ mode that holds gears longer and downshifts more aggressively.
Driving Characteristics
The XK R Convertible delivers a truly engaging driving experience. The supercharged V8 provides effortless acceleration, with 0-60 mph arriving in around 4.6 seconds. The automatic transmission, while smooth, can feel slightly less engaging than a manual gearbox, but the ‘Sport’ mode mitigates this. The gear ratios are well-chosen for both cruising and spirited driving. The car feels planted and stable at high speeds, thanks to its aluminum chassis and well-tuned suspension. However, its considerable weight (approximately 3,968 lbs) is noticeable during hard cornering.
Equipment & Trim Levels
The XK R Convertible came generously equipped as standard. Key features included leather upholstery, heated front seats, a premium sound system, automatic climate control, and bi-xenon headlights. Optional extras included adaptive cruise control, a navigation system, and upgraded interior trim materials. The R trim also featured unique exterior styling cues, such as a mesh grille, quad exhaust outlets, and R-specific badging. Interior trim options included a variety of wood veneers and leather colors.
Chassis & Braking
The XK R Convertible utilizes a double wishbone suspension system at both the front and rear, with a transverse stabilizer bar to reduce body roll. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) is standard. The suspension is tuned to provide a balance between comfort and handling, offering a relatively compliant ride quality while maintaining good control in corners.
Market Reception & Comparison
The XK R Convertible was generally well-received by automotive critics. It was praised for its powerful engine, luxurious interior, and stylish design. However, some critics noted its high fuel consumption and considerable weight. Compared to the standard XK Convertible, the R model offered a significant performance upgrade, justifying its higher price tag. Against competitors like the Porsche 911 Cabriolet and BMW 6 Series Convertible, the XK R offered a more luxurious and comfortable experience, albeit with slightly less focused handling.
Legacy
The AJ133 5.0-liter supercharged V8 engine has proven to be a remarkably reliable powerplant, provided it receives regular maintenance. The ZF six-speed automatic transmission is also known for its durability. While early X150 models experienced some electrical gremlins, the facelifted 2009-2011 cars are generally considered to be more refined. Today, the XK R Convertible remains a desirable grand tourer, offering a blend of performance, luxury, and British charm. Values have remained relatively stable, making it an attractive option for enthusiasts seeking a sophisticated and powerful open-top experience.
