The Land Rover Range Rover IV (facelift, L405) Long P400 3.0, produced from July 2019 to October 2021, represents a sophisticated iteration of the iconic luxury SUV. This variant, positioned within the upper-mid range of the fourth-generation Range Rover lineup, combines a 3.0-liter inline-six cylinder engine with mild hybrid technology and an eight-speed automatic transmission, offering a blend of performance, refinement, and efficiency. The “Long” designation indicates an extended wheelbase, providing increased rear passenger space, a key feature for buyers prioritizing comfort and luxury. This model was primarily aimed at the North American, European, and Middle Eastern markets, where demand for high-end, capable SUVs remained strong.
Technical Specifications
| Brand | Land Rover |
| Model | Range Rover |
| Generation | Range Rover IV (facelift 2017) Long |
| Type (Engine) | P400 3.0 (400 Hp) Mild Hybrid AWD Automatic |
| Start of production | July, 2019 |
| End of production | October, 2021 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (combined) | 10.8-11.4 l/100 km (21.8 – 20.6 US mpg, 26.2 – 24.8 UK mpg, 9.3 – 8.8 km/l) |
| CO2 emissions | 213-217 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.5 sec |
| Acceleration 0 – 62 mph | 6.5 sec |
| Acceleration 0 – 60 mph | 6.2 sec |
| Maximum speed | 225 km/h (139.81 mph) |
| Weight-to-power ratio | 5.9 kg/Hp, 168.4 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 231.6 Nm/tonne |
| Power | 400 Hp @ 5500-6500 rpm |
| Power per litre | 133.5 Hp/l |
| Torque | 550 Nm @ 2000-5000 rpm (405.66 lb.-ft. @ 2000-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | PT306 |
| Engine displacement | 2996 cm3 (182.83 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92.3 mm (3.63 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 8.05 l (8.51 US qt | 7.08 UK qt) |
| Kerb Weight | 2375 kg (5235.98 lbs.) |
| Max. weight | 3170 kg (6988.65 lbs.) |
| Max load | 795 kg (1752.67 lbs.) |
| Fuel tank capacity | 104 l (27.47 US gal | 22.88 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 3500 kg (7716.18 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 | 3122 mm (122.91 in.) |
| Front track | 1693 mm (66.65 in.) |
| Rear track | 1685 mm (66.34 in.) |
| Ride height (ground clearance) | 220-297 mm (8.66 – 11.69 in.) |
| Minimum turning circle | 13.1 m (42.98 ft.) |
| Approach angle | 25.5-34.7° |
| Departure angle | 24.5-29.0° |
| Ramp-over angle | 20.0-25.6° |
| Wading depth | 900 mm (35.43 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| Front brakes | Ventilated discs, 380 mm |
| Rear brakes | Ventilated discs, 365 mm |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Wheel rims size | 19; 20; 21; 22 |
INTRODUCTION
The Range Rover IV (L405) facelift, introduced in 2017, brought significant updates to Land Rover’s flagship SUV, including revised styling, enhanced technology, and a new generation of engines. The P400 3.0 Long variant, launched in 2019, utilizes Jaguar Land Rover’s Ingenium engine family, specifically the PT306. This engine is a 3.0-liter inline-six cylinder unit, turbocharged and augmented by a 48-volt mild hybrid system. The mild hybrid system contributes to improved fuel economy and smoother operation through regenerative braking and electric assist. The “Long” wheelbase version adds approximately 140mm (5.5 inches) to the standard Range Rover’s length, dedicating the extra space to rear passenger legroom. This model aimed to provide a luxurious and comfortable experience, appealing to buyers who frequently travel with passengers or prioritize rear-seat comfort.
Powertrain & Engine Architecture
The heart of the P400 is the PT306 3.0-liter inline-six engine. This engine features a sophisticated design incorporating direct fuel injection, a twin-scroll turbocharger, and variable valve timing. The mild hybrid system utilizes a Belt-integrated Starter Generator (BiSG) which recovers energy during deceleration and assists the engine during acceleration. This system allows for engine-off coasting and quicker restarts, contributing to fuel savings. The engine’s aluminum block and head contribute to weight reduction. The eight-speed automatic transmission, sourced from ZF, is known for its smooth shifting and responsiveness. It’s programmed to prioritize comfort in normal driving modes but can deliver quicker shifts in Sport mode. The transmission features a wide gear ratio spread, optimizing both fuel efficiency and performance.
Driving Characteristics
The P400 3.0 Automatic delivers a refined and capable driving experience. While not as overtly sporty as some competitors, it provides ample power for effortless cruising and confident overtaking. The 400 horsepower and 405 lb-ft of torque translate to a 0-60 mph time of around 6.2 seconds. The eight-speed transmission is well-matched to the engine’s characteristics, providing smooth and seamless gear changes. The mild hybrid system helps to mitigate turbo lag, resulting in a more responsive feel. Compared to the supercharged V6 models, the P400 offers comparable performance with improved fuel economy. Compared to the diesel variants, the P400 provides a more refined and quieter driving experience, albeit with slightly higher fuel consumption.
Equipment & Trim Levels
The Range Rover IV (facelift) Long P400 typically came standard with a high level of equipment, reflecting its luxury positioning. Standard features included leather upholstery, heated and ventilated front seats, a panoramic sunroof, a premium sound system, and a comprehensive suite of driver-assistance technologies such as adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras included upgraded leather trims, rear-seat entertainment systems, massaging seats, and a variety of exterior styling enhancements. The interior design emphasized luxury and comfort, with high-quality materials and meticulous attention to detail. The dashboard featured a touchscreen infotainment system with navigation, smartphone integration, and a range of connectivity options.
Chassis & Braking
The Range Rover IV utilizes a robust aluminum monocoque chassis, providing a strong and lightweight foundation. The suspension system features air suspension with electronic dampers, offering a comfortable ride and the ability to adjust ride height for off-road capability. The P400 variant typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system incorporates various traction control modes, optimizing performance for different driving conditions. The long wheelbase contributes to improved stability and ride comfort, particularly on uneven surfaces.
Market Reception & Comparison
The Range Rover IV (facelift) Long P400 was generally well-received by critics, who praised its luxurious interior, comfortable ride, and refined powertrain. The mild hybrid system was seen as a positive step towards improved fuel efficiency. However, some reviewers noted that the P400’s performance, while adequate, wasn’t as exhilarating as some of its competitors. Compared to the Range Rover Sport, the Long P400 prioritized comfort and rear passenger space over sporty handling. Fuel economy figures of around 20-24 mpg in real-world driving were typical. Reliability reports suggest that the Ingenium engine has proven to be relatively reliable, although some owners have reported minor issues with the infotainment system.
Legacy
The Range Rover IV (facelift) Long P400 represents a significant step in Land Rover’s evolution, showcasing the brand’s commitment to luxury, technology, and sustainability. The Ingenium engine family has become a cornerstone of Jaguar Land Rover’s powertrain strategy, and the mild hybrid technology paved the way for the introduction of plug-in hybrid models. On the used car market, the P400 Long variant remains a desirable option for buyers seeking a luxurious and capable SUV. Its combination of performance, comfort, and technology continues to appeal to a wide range of customers. Well-maintained examples command a premium price, reflecting the Range Rover’s enduring reputation for quality and prestige.
