The BMW X6 M50i, produced from November 2019 to February 2023 as part of the G06 generation, represents a high-performance iteration of BMW’s Sports Activity Coupe (SAC). Positioned as a premium offering within the X6 lineup, the M50i bridged the gap between the standard X6 models and the full-fledged X6 M. It aimed to deliver a blend of luxury, practicality, and potent performance, appealing to buyers seeking a powerful and sophisticated SUV. The M50i’s introduction solidified the X6’s role as a flagship model, showcasing BMW’s engineering capabilities and design language.
Technical Specifications
| Brand | BMW |
| Model | X6 |
| Generation | X6 (G06) |
| Type (Engine) | M50i (530 Hp) xDrive Steptronic |
| Start of production | November, 2019 |
| End of production | February, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAC |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 13.7-14.2 l/100 km (17.2 – 16.6 US mpg, 20.6 – 19.9 UK mpg, 7.3 – 7 km/l) |
| Fuel consumption (economy) – extra urban | 8.5 l/100 km (27.7 US mpg, 33.2 UK mpg, 11.8 km/l) |
| Fuel consumption (economy) – combined | 10.4-10.7 l/100 km (22.6 – 22 US mpg, 27.2 – 26.4 UK mpg, 9.6 – 9.3 km/l) |
| CO2 emissions | 237-243 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.3 sec |
| Acceleration 0 – 62 mph | 4.3 sec |
| Acceleration 0 – 60 mph | 4.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-Temp |
| Weight-to-power ratio | 4.2 kg/Hp, 237.1 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 335.6 Nm/tonne |
| Power | 530 Hp @ 5500-6000 rpm |
| Power per litre | 120.6 Hp/l |
| Torque | 750 Nm @ 1800-4600 rpm (553.17 lb.-ft. @ 1800-4600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N63B44D |
| 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 |
| Valvetrain | VALVETRONIC |
| Engine oil capacity | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Coolant | 13.6 l (14.37 US qt | 11.97 UK qt) |
| Kerb Weight | 2235 kg (4927.33 lbs.) |
| Max. weight | 2975 kg (6558.75 lbs.) |
| Max load | 740 kg (1631.42 lbs.) |
| Trunk (boot) space – minimum | 580 l (20.48 cu. ft.) |
| Trunk (boot) space – maximum | 1530 l (54.03 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%) | 3500 kg (7716.18 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 4935 mm (194.29 in.) |
| Width | 2004 mm (78.9 in.) |
| Width including mirrors | 2212 mm (87.09 in.) |
| Height | 1696 mm (66.77 in.) |
| Wheelbase | 2975 mm (117.13 in.) |
| Front track | 1678 mm (66.06 in.) |
| Rear (Back) track | 1698 mm (66.85 in.) |
| Front overhang | 878 mm (34.57 in.) |
| Rear overhang | 1082 mm (42.6 in.) |
| Ride height (ground clearance) | 216 mm (8.5 in.) |
| Drag coefficient (Cd) | 0.34 |
| Minimum turning circle (turning diameter) | 12.6 m (41.34 ft.) |
| 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 | Independent multi-link suspension |
| 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 | Front wheel tires: 275/40 R21 107Y XL Rear wheel tires: 315/35 R21 111Y XL |
| Wheel rims size | Front wheel rims: 9.5J x 21 Rear wheel rims: 10.5J x 21 |
Powertrain & Engine Architecture
At the heart of the X6 M50i lies the N63B44D 4.4-liter twin-turbocharged V8 engine. This engine is a significant evolution of BMW’s V8 architecture, featuring direct fuel injection, a Valvetronic variable valve timing system, and twin scroll turbochargers. The twin-turbo setup delivers a broad torque curve, peaking at 750 Nm (553 lb-ft) between 1800 and 4600 rpm. The engine’s output of 530 horsepower is achieved between 5500 and 6000 rpm. The N63 engine family is known for its robust construction and ability to handle increased performance through tuning. The engine is longitudinally mounted at the front of the vehicle. Paired with the engine is an 8-speed Steptronic automatic transmission, known for its smooth and quick shifts. This transmission is programmed for both efficient cruising and responsive acceleration, adapting to the driver’s style. The xDrive all-wheel-drive system intelligently distributes power between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The X6 M50i delivers a compelling driving experience, blending the comfort expected of a luxury SUV with the performance of a sports car. The 4.1-second 0-60 mph acceleration time is indicative of its potent power delivery. The automatic transmission is well-tuned, providing seamless gear changes and keeping the engine within its optimal power band. While not as overtly aggressive as the full M model, the M50i offers ample power for overtaking and spirited driving. The xDrive system provides excellent grip, inspiring confidence in corners. Compared to the X6 40i (with its inline-six engine), the M50i offers a significantly more powerful and refined experience. The M50i also feels more planted and stable at higher speeds than the lower-powered variants. The gear ratios are optimized for both acceleration and highway cruising, providing a balance between performance and efficiency.
Equipment & Trim Levels
The X6 M50i came standard with a comprehensive suite of luxury and technology features. Standard interior appointments included premium leather upholstery, multi-contour seats with massage function, a panoramic sunroof, and a Bowers & Wilkins Diamond Surround Sound System. The dashboard featured BMW’s Live Cockpit Professional, a fully digital instrument cluster and a large central infotainment display. Available options included extended leather trim, individual high-gloss chrome finishes, and a variety of driver-assistance systems such as adaptive cruise control, lane keeping assist, and parking assist. Exterior features included M Sport styling cues, 21-inch alloy wheels, and adaptive LED headlights.
Chassis & Braking
The X6 M50i utilizes a double-wishbone front suspension and an independent multi-link rear suspension, optimized for both comfort and handling. Adaptive dampers are standard, allowing the driver to adjust the suspension stiffness to suit their preferences. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. The M50i benefits from a slightly stiffer suspension setup compared to the standard X6 models, contributing to improved body control and reduced roll. The electronic power steering system offers precise and responsive steering feel.
Market Reception & Comparison
The X6 M50i was generally well-received by automotive critics, praised for its powerful engine, luxurious interior, and refined driving dynamics. Reviewers noted that it offered a compelling alternative to traditional performance SUVs. Compared to the X6 40i, the M50i commanded a significant price premium, but offered a substantial increase in performance and exclusivity. Fuel economy, while not a priority for most buyers in this segment, was considered reasonable for a vehicle of its size and performance. Reliability reports suggest that the N63 engine, while capable, can be prone to certain issues, such as oil leaks and cooling system failures, requiring diligent maintenance.
Legacy
The X6 M50i represents a significant chapter in the evolution of BMW’s performance SUV lineup. Its combination of luxury, performance, and technology set a high standard for the segment. On the used car market, the M50i remains a desirable option for buyers seeking a powerful and well-equipped SUV. However, potential buyers should be aware of the potential maintenance costs associated with the N63 engine and ensure that the vehicle has been properly maintained. The M50i’s success paved the way for future high-performance X6 models, solidifying the X6’s position as a leader in the luxury SUV market.
