The BMW X6 M (F86), produced from March 2015 to April 2018, represents the high-performance variant of the second-generation BMW X6. Positioned as the flagship SUV within the X6 lineup, the X6 M aimed to deliver the driving dynamics of a BMW M car within the practical body style of a Sports Activity Coupe (SAC). This model distinguished itself through a significantly more powerful engine, upgraded suspension, and aggressive styling cues compared to the standard X6 models. The F86 generation was exclusively offered with BMW’s xDrive all-wheel-drive system and an 8-speed Steptronic automatic transmission.
Technical Specifications
| Brand | BMW |
| Model | X6 M |
| Generation | X6 M (F86) |
| Type (Engine) | 4.4 V8 (575 Hp) xDrive Steptronic |
| Start of production | March, 2015 |
| End of production | April, 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (economy) – extra urban | 9 l/100 km (26.1 US mpg, 31.4 UK mpg, 11.1 km/l) |
| Fuel consumption (economy) – combined | 11.1 l/100 km (21.2 US mpg, 25.4 UK mpg, 9 km/l) |
| CO2 emissions | 258 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.2 sec |
| Acceleration 0 – 62 mph | 4.2 sec |
| Acceleration 0 – 60 mph | 4 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.9 kg/Hp, 253.9 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 331.1 Nm/tonne |
| Power | 575 Hp @ 6000-6500 rpm |
| Power per litre | 130.8 Hp/l |
| Torque | 750 Nm @ 2200-5000 rpm (553.17 lb.-ft. @ 2200-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | S63B44 |
| 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 | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 9.5 l (10.04 US qt | 8.36 UK qt) |
| Coolant | 16.8 l (17.75 US qt | 14.78 UK qt) |
| Kerb Weight | 2265 kg (4993.47 lbs.) |
| Max. weight | 2950 kg (6503.64 lbs.) |
| Max load | 685 kg (1510.17 lbs.) |
| Trunk (boot) space – minimum | 550 l (19.42 cu. ft.) |
| Trunk (boot) space – maximum | 1525 l (53.85 cu. ft.) |
| Fuel tank capacity | 85 l (22.45 US gal | 18.7 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2950 kg (6503.64 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 4909 mm (193.27 in.) |
| Width | 1989 mm (78.31 in.) |
| Height | 1689 mm (66.5 in.) |
| Wheelbase | 2933 mm (115.47 in.) |
| Front track | 1666 mm (65.59 in.) |
| Rear (Back) track | 1667 mm (65.63 in.) |
| Ride height (ground clearance) | 195 mm (7.68 in.) |
| Drag coefficient (Cd) | 0.37 |
| Minimum turning circle (turning diameter) | 12.8 m (41.99 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 | 285/40 R20 104Y; 325/35 R20 108Y |
| Wheel rims size | 10.0J x 20; 11.5J x 20 |
Powertrain & Engine Architecture
The heart of the X6 M (F86) is BMW’s S63B44 engine, a 4.4-liter twin-turbocharged V8. This engine, a member of the N63 family, was specifically tuned for M performance, delivering 575 horsepower at 6000-6500 rpm and 750 Nm (553 lb-ft) of torque between 2200 and 5000 rpm. The engine utilizes direct fuel injection, a twin-scroll twin-turbocharger setup, and variable valve timing (Valvetronic) and variable camshaft timing (Double-VANOS) to optimize performance and efficiency. The engine’s block is constructed from aluminum alloy, contributing to weight reduction. The exhaust system features electronically controlled flaps, allowing for adjustable sound characteristics. The sole transmission option was an 8-speed Steptronic automatic transmission, featuring quicker shift times and optimized programming for M performance. This transmission offered both automatic and manual shift modes, with paddle shifters mounted on the steering wheel.
Driving Characteristics
The X6 M’s driving experience is characterized by its potent acceleration and surprisingly agile handling for a vehicle of its size and weight. The xDrive all-wheel-drive system provides excellent traction, particularly in adverse weather conditions. The 8-speed automatic transmission delivers smooth and responsive shifts, contributing to the vehicle’s overall performance. While the automatic transmission is efficient, it doesn’t quite match the engagement and control offered by a dual-clutch transmission. The suspension, tuned for performance, provides a firm but controlled ride, minimizing body roll during cornering. The steering is precise and well-weighted, offering good feedback to the driver. Compared to the X6 xDrive35i or xDrive50i models, the X6 M offers a significantly more aggressive driving experience, prioritizing performance over comfort.
Equipment & Trim Levels
The X6 M came standard with a comprehensive list of features, including Merino leather upholstery, power-adjustable heated front seats, a premium sound system, a navigation system, and a rearview camera. Standard exterior features included M-specific aerodynamic enhancements, such as a unique front fascia, side skirts, and rear diffuser. Optional extras included carbon fiber trim, a head-up display, active steering, and various driver-assistance systems. The interior featured M-specific badging and instrumentation, emphasizing the vehicle’s performance credentials.
Chassis & Braking
The X6 M’s chassis was specifically reinforced to handle the increased power and torque of the S63B44 engine. The suspension featured adaptive dampers and stiffer springs, lowering the ride height for improved handling. The braking system consisted of large, ventilated discs with multi-piston calipers, providing ample stopping power. The rear brakes were also ventilated discs, a step up from the solid discs found on some lower-trim X6 models. The X6 M also featured a robust stabilizer bar setup to minimize body roll during cornering.
Market Reception & Comparison
The BMW X6 M (F86) received generally positive reviews from automotive critics. It was praised for its powerful engine, impressive handling, and luxurious interior. However, some critics noted the vehicle’s high price and relatively firm ride. Compared to the X6 xDrive50i, the X6 M offered significantly more performance but at a substantial price premium. The X6 M also faced competition from other high-performance SUVs, such as the Porsche Cayenne Turbo and the Mercedes-Benz ML63 AMG. Fuel economy, while respectable for a vehicle of its performance, was not a strong point, averaging around 21.2 US mpg in combined driving.
Legacy
The F86 generation X6 M established itself as a benchmark for performance SUVs. The S63B44 engine proved to be a robust and reliable powerplant, although regular maintenance is crucial to ensure its longevity. On the used car market, the X6 M (F86) remains a desirable vehicle for enthusiasts seeking a blend of performance, luxury, and practicality. While maintenance costs can be higher than those of lower-trim X6 models, the X6 M’s unique driving experience and exclusivity continue to attract buyers.
