The BMW X5 (G05) 50i xDrive Steptronic, produced from November 2018 to August 2019, represents a high-performance variant within the third generation of the X5 Sports Activity Vehicle (SAV). Positioned as a premium offering, it slotted above the 40i and 30d models, delivering significantly more power and a more luxurious experience. This model catered to buyers seeking a blend of practicality, performance, and advanced technology within the mid-size luxury SUV segment. The G05 generation marked a substantial evolution for the X5, incorporating a more robust chassis, updated technology, and refined interior appointments.
Technical Specifications
| Brand | BMW |
| Model | X5 |
| Generation | X5 (G05) |
| Type (Engine) | 50i (462 Hp) xDrive Steptronic |
| Start of production | November, 2018 |
| End of production | August, 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 15.6 l/100 km (15.1 US mpg, 18.1 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban | 9.2 l/100 km (25.6 US mpg, 30.7 UK mpg, 10.9 km/l) |
| Fuel consumption (economy) – combined | 11.6 l/100 km (20.3 US mpg, 24.4 UK mpg, 8.6 km/l) |
| CO2 emissions | 264 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 4.9 kg/Hp, 202.1 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 284.3 Nm/tonne |
| Power | 462 Hp @ 5250-6000 rpm |
| Power per litre | 105.1 Hp/l |
| Torque | 650 Nm @ 1500-4750 rpm (479.42 lb.-ft. @ 1500-4750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N63B44M3 |
| Engine displacement | 4395 cm3 (268.2 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 10.5 l (11.1 US qt, 9.24 UK qt) |
| Coolant | 12.6 l (13.31 US qt, 11.09 UK qt) |
| Kerb Weight | 2286 kg (5039.77 lbs.) |
| Max. weight | 2930 kg (6459.54 lbs.) |
| Max load | 644 kg (1419.78 lbs.) |
| Trunk (boot) space – minimum | 645 l (22.78 cu. ft.) |
| Trunk (boot) space – maximum | 1860 l (65.69 cu. ft.) |
| Fuel tank capacity | 83 l (21.93 US gal, 18.26 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2700 kg (5952.48 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 4922 mm (193.78 in.) |
| Width | 2004 mm (78.9 in.) |
| Width including mirrors | 2218 mm (87.32 in.) |
| Height | 1745 mm (68.7 in.) |
| Wheelbase | 2975 mm (117.13 in.) |
| Front track | 1678 mm (66.06 in.) |
| Rear (Back) track | 1697 mm (66.81 in.) |
| Front overhang | 874 mm (34.41 in.) |
| Rear overhang | 1073 mm (42.24 in.) |
| Ride height (ground clearance) | 214 mm (8.43 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle (turning diameter) | 12.6 m (41.34 ft.) |
| Approach angle | 25.2° |
| Departure angle | 22.3° |
| Ramp-over (brakeover) angle | 20.2° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| 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 Steering |
| Tires size | 265/50 R19 |
| Wheel rims size | 9J x 19 |
Powertrain & Engine Architecture
The heart of the X5 50i is BMW’s N63B44M3 4.4-liter twin-turbocharged V8 engine. This engine represents a significant advancement over its predecessors, featuring a direct injection system, double-VANOS variable valve timing, and Valvetronic throttle control. The twin-scroll turbochargers are positioned within the V of the engine, promoting quicker response and improved packaging. The engine produces 462 horsepower at 5,250-6,000 rpm and a substantial 650 Nm (479 lb-ft) of torque between 1,500 and 4,750 rpm. This broad torque curve contributes to effortless acceleration and strong performance across the rev range. The engine is paired with BMW’s 8-speed Steptronic automatic transmission, known for its smooth shifts and quick response. The transmission features Drivelogic, allowing the driver to select different shift programs for a more sporty or comfort-oriented driving experience.
Driving Characteristics
The X5 50i delivers a markedly different driving experience compared to the four-cylinder or six-cylinder variants. The V8 engine provides immediate and powerful acceleration, enabling a 0-60 mph time of around 4.5 seconds. The eight-speed automatic transmission is well-matched to the engine’s characteristics, providing seamless gear changes and contributing to a refined driving experience. While not as fuel-efficient as the lower-powered models, the X5 50i offers a compelling balance of performance and comfort. The xDrive all-wheel-drive system provides excellent traction in various conditions, enhancing stability and control. The steering is precise and well-weighted, offering a confident feel on the road.
Equipment & Trim Levels
The X5 50i came standard with a comprehensive list of features, including leather upholstery, power-adjustable front seats with memory function, a panoramic sunroof, and a premium sound system. Standard technology included BMW’s iDrive infotainment system with a 12.3-inch touchscreen display, navigation, and Apple CarPlay compatibility. Optional extras included upgraded leather options, rear-seat entertainment systems, active steering, and a variety of driver-assistance features such as adaptive cruise control and lane-keeping assist. The interior trim could be customized with various wood or aluminum accents.
Chassis & Braking
The G05 X5 utilizes a robust chassis construction with a combination of high-strength steel and aluminum. The suspension system features double wishbones at both the front and rear, providing a comfortable ride and precise handling. Adaptive suspension was often equipped, allowing the driver to adjust the damping characteristics to suit their preferences. The X5 50i came equipped with large, ventilated disc brakes at all four corners, providing ample stopping power. The braking system also included ABS, dynamic stability control, and corner brake control for enhanced safety.
Market Reception & Comparison
The X5 50i was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. However, its higher price tag and relatively low fuel economy were noted as potential drawbacks. Compared to the X5 40i, the 50i offered a significant performance upgrade but at a considerable cost. Against competitors such as the Porsche Cayenne and the Range Rover, the X5 50i offered a compelling combination of performance, luxury, and technology.
Legacy
The N63 engine, while powerful, has been known to require diligent maintenance, particularly regarding cooling system components and turbocharger health. Early iterations of the N63 were prone to oil leaks and cooling system failures, but BMW addressed many of these issues with subsequent revisions. Today, well-maintained X5 50i models can provide years of reliable service, but prospective buyers should be aware of the potential maintenance costs associated with the V8 engine. The G05 X5 50i remains a desirable vehicle in the used car market, appealing to buyers who prioritize performance and luxury in a practical SUV package.
