The Land Rover Range Rover IV (facelift, L494) Long 4.4 SDV8, produced from 2018 to July 2020, represents a pinnacle of luxury and capability within the fourth generation of the iconic Range Rover. This long-wheelbase variant, equipped with the 448DT 4.4-liter turbocharged diesel V8 engine producing 339 horsepower, was positioned as a premium offering, catering to buyers prioritizing space, refinement, and robust performance. It built upon the already successful L494 platform, introduced in 2012, incorporating styling updates and technological enhancements from the 2017 facelift. The “Long” designation signifies an extended wheelbase, providing significantly more rear passenger legroom compared to the standard-wheelbase model, making it a popular choice for chauffeur-driven executives and families.
Technical Specifications
| Brand | Land Rover |
| Model | Range Rover |
| Generation | Range Rover IV (facelift 2017) Long |
| Type (Engine) | 4.4 SDV8 (339 Hp) AWD Automatic |
| Start of production | 2018 |
| End of production | July, 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (combined) | 9.2-9.4 l/100 km (25.6 – 25 US mpg, 30.7 – 30.1 UK mpg, 10.9 – 10.6 km/l) |
| CO2 emissions | 244-247 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 217 km/h (134.84 mph) |
| Weight-to-power ratio | 7.6 kg/Hp, 131.2 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 286.5 Nm/tonne |
| Power | 339 Hp @ 3500 rpm |
| Power per litre | 77.6 Hp/l |
| Torque | 740 Nm @ 1750-2250 rpm (545.8 lb.-ft. @ 1750-2250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 448DT |
| Engine displacement | 4367 cm3 (266.49 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 98.5 mm (3.88 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 9.4 l (9.93 US qt | 8.27 UK qt) |
| Coolant | 7.13 l (7.53 US qt | 6.27 UK qt) |
| Kerb Weight | 2583 kg (5694.54 lbs.) |
| Max. weight | 3340 kg (7363.44 lbs.) |
| Max load | 757 kg (1668.9 lbs.) |
| Fuel tank capacity | 86 l (22.72 US gal | 18.92 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 3400 kg (7495.72 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 150 kg (330.69 lbs.) |
| Length | 5200 mm (204.72 in.) |
| Width with mirrors folded | 2073 mm (81.61 in.) |
| Width including mirrors | 2220 mm (87.4 in.) |
| Height | 1868 mm (73.54 in.) |
| Wheelbase | 3120 mm (122.83 in.) |
| Front track | 1693 mm (66.65 in.) |
| Rear (Back) track | 1685 mm (66.34 in.) |
| Ride height (ground clearance) | 211-297 mm (8.31 – 11.69 in.) |
| Minimum turning circle | 13.4 m (43.96 ft.) |
| Approach angle | 25.5-29.7° |
| Departure angle | 24.5-27.6° |
| Ramp-over angle | 20-25.6° |
| Wading depth | 900 mm (35.43 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front brakes | Ventilated discs, 380 mm |
| Rear brakes | Ventilated discs, 365 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
Powertrain & Engine Architecture
The heart of the 4.4 SDV8 is the 448DT engine, a 4.4-liter twin-turbocharged diesel V8. This engine utilizes a common rail direct injection system, delivering fuel at extremely high pressure for optimized combustion. The engine features four valves per cylinder and a robust cast iron block, contributing to its durability. The twin turbochargers, sequentially activated, provide both low-end responsiveness and high-end power. The 8-speed ZF 8HP70 automatic transmission, known for its smoothness and efficiency, is paired with the engine. This transmission offers both fully automatic operation and manual control via steering wheel-mounted paddles. The transmission’s wide gear ratio spread contributes to both fuel economy and strong acceleration.
Driving Characteristics
The 4.4 SDV8 Long offers a compelling blend of performance and comfort. While not as overtly sporty as some of its gasoline-powered siblings, the substantial 740 Nm (545.8 lb-ft) of torque provides effortless acceleration in virtually any situation. The 0-60 mph time of around 7.1 seconds is respectable for a vehicle of this size and weight. The automatic transmission shifts smoothly and intelligently, adapting to driving conditions and driver input. The long wheelbase contributes to a more stable and composed ride, particularly at highway speeds. Compared to the 3.0-liter SDV6 models, the 4.4 SDV8 offers significantly more power and a more refined driving experience. However, it comes at the cost of increased fuel consumption and potentially higher maintenance costs.
Equipment & Trim Levels
The Range Rover IV (facelift) Long 4.4 SDV8 typically came generously equipped. Standard features included leather upholstery, heated and ventilated front seats with massage function, a premium Meridian sound system, a panoramic sunroof, and a comprehensive suite of driver-assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking. The long wheelbase model prioritized rear passenger comfort, often featuring executive rear seats with individual climate control and entertainment options. Optional extras included a rear seat entertainment system, upgraded leather trim, and various exterior styling enhancements.
Chassis & Braking
The Range Rover IV utilizes a full-time four-wheel drive system with a two-speed transfer case for enhanced off-road capability. The air suspension system, standard on this model, provides adjustable ride height and exceptional ride quality. The suspension geometry is tuned to balance on-road comfort with off-road articulation. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The electronic stability control system incorporates various traction control modes to optimize performance on different surfaces.
Market Reception & Comparison
The Range Rover IV (facelift) Long 4.4 SDV8 was well-received by critics for its luxurious interior, refined driving experience, and impressive off-road capability. However, its high price tag and relatively high fuel consumption were noted drawbacks. Compared to the 3.0-liter SDV6 models, the 4.4 SDV8 offered a more powerful and refined driving experience, but at a higher cost. The gasoline-powered variants, while offering more horsepower, generally suffered from lower fuel economy. The diesel engine’s torque advantage made it a popular choice for those who frequently tow or drive in challenging conditions.
Legacy
The 448DT engine, while generally reliable, can be susceptible to issues with the turbochargers and fuel injectors as it ages. Regular maintenance, including oil changes and filter replacements, is crucial for ensuring long-term reliability. The ZF 8HP70 transmission is known for its durability, but requires periodic servicing. Today, the Range Rover IV (facelift) Long 4.4 SDV8 remains a desirable luxury SUV on the used car market, commanding a premium price due to its combination of space, refinement, and performance. Its robust construction and advanced technology continue to appeal to buyers seeking a high-end, capable vehicle.
