The BMW X6 M (E71 facelift) with the 4.4-liter V8 engine producing 560 horsepower and paired with the Steptronic automatic transmission was produced from 2012 to 2014. This high-performance variant represented the pinnacle of the first-generation X6 (E71) series, blending the practicality of a sport utility vehicle with the performance characteristics of a sports car. Positioned as the flagship model, it catered to buyers seeking exclusivity, aggressive styling, and substantial power. The facelift brought updated styling cues and minor mechanical refinements to the original X6 M, solidifying its position in the burgeoning performance SUV segment.
Technical Specifications
| Brand | BMW |
| Model | X6 M |
| Generation | X6 M (E71 facelift 2012) |
| Type (Engine) | 4.4 V8 (560 Hp) Steptronic |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 19.3 l/100 km (12.2 US mpg, 14.6 UK mpg, 5.2 km/l) |
| Fuel consumption (extra urban) | 10.8 l/100 km (21.8 US mpg, 26.2 UK mpg, 9.3 km/l) |
| Fuel consumption (combined) | 13.9 l/100 km (16.9 US mpg, 20.3 UK mpg, 7.2 km/l) |
| 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) |
| Weight-to-power ratio | 4.3 kg/Hp, 235.3 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 285.7 Nm/tonne |
| Power | 560 Hp @ 6000 rpm |
| Power per litre | 127.4 Hp/l |
| Torque | 680 Nm @ 1500-5650 rpm (501.54 lb.-ft. @ 1500-5650 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 | 9.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 8.4 l (8.88 US qt | 7.39 UK qt) |
| Coolant | 17 l (17.96 US qt | 14.96 UK qt) |
| Kerb Weight | 2380 kg (5247 lbs.) |
| Max. weight | 2905 kg (6404.43 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Fuel tank capacity | 85 l (22.45 US gal | 18.7 UK gal) |
| Length | 4876 mm (191.97 in.) |
| Width | 1983 mm (78.07 in.) |
| Height | 1983 mm (78.07 in.) |
| Wheelbase | 2933 mm (115.47 in.) |
| Front track | 1660 mm (65.35 in.) |
| Rear track | 1672 mm (65.83 in.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 8 |
| Gearbox type | Automatic transmission Steptronic |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 275/40 R 20 106Y; 315/35 R20 110Y |
| Wheel rims size | 10J x 20; 11J x 20 |
Powertrain & Engine Architecture
The heart of the X6 M is the S63B44 engine, a 4.4-liter twin-turbocharged V8. This engine utilizes direct fuel injection and Valvetronic variable valve timing, allowing for precise control over airflow and combustion. The twin turbochargers, positioned within the V of the engine, minimize turbo lag and deliver a broad, flat torque curve. The engine’s output of 560 horsepower and 501.54 lb-ft of torque provides exhilarating acceleration. The Steptronic 8-speed automatic transmission is specifically tuned for performance, offering quick and smooth shifts. Drivers could also manually shift using paddle shifters mounted on the steering wheel. The transmission’s programming prioritizes responsiveness and allows for holding gears during aggressive driving.
Driving Characteristics
The X6 M’s driving experience is characterized by its impressive power and surprisingly agile handling for a vehicle of its size. The combination of the potent V8 engine and the quick-shifting Steptronic transmission results in a 0-60 mph time of around 4.5 seconds. While not as raw or visceral as some dedicated sports cars, the X6 M delivers a refined yet engaging driving experience. The suspension is firm, providing excellent body control, but can be somewhat harsh on rough roads. The rear-wheel-drive configuration contributes to a balanced feel, although traction can be a concern in inclement weather. Compared to the X6 35i or the X6 40d, the M variant offers a significantly more powerful and dynamic driving experience, sacrificing some fuel economy in the process.
Equipment & Trim Levels
The X6 M came standard with a comprehensive list of features, befitting its flagship status. Interior appointments included sport seats upholstered in Merino leather, aluminum trim, and a unique M steering wheel. Standard equipment also included a premium sound system, navigation, and a power liftgate. Optional extras included carbon fiber trim, ventilated and massaging front seats, and a head-up display. The exterior featured aggressive styling cues, including a unique front fascia, flared wheel arches, and quad exhaust outlets. The X6 M was largely offered as a single, well-equipped trim level, with options allowing for personalization.
Chassis & Braking
The X6 M’s chassis was specifically tuned to handle the increased power output. It featured a reinforced suspension system with stiffer springs and dampers, as well as larger stabilizer bars. The braking system consisted of ventilated discs at all four corners, with large multi-piston calipers providing ample stopping power. The standard Dynamic Performance Control system utilized a clutch pack in the rear differential to distribute torque between the rear wheels, enhancing stability and agility. The tires, sized 275/40 R20 at the front and 315/35 R20 at the rear, were specifically chosen to provide maximum grip.
Market Reception & Comparison
The X6 M received generally positive reviews from automotive critics. It was praised for its powerful engine, impressive handling, and luxurious interior. However, some critics noted its high price and relatively harsh ride. Compared to rivals such as the Porsche Cayenne Turbo, the X6 M offered a similar level of performance and luxury, but with a more distinctive and polarizing design. Fuel economy was a common criticism, with the X6 M consuming significantly more fuel than its less powerful siblings. Reliability was generally good, although the complex twin-turbocharged engine required diligent maintenance.
Legacy
The E71 X6 M established BMW’s presence in the high-performance SUV segment. While the model has been superseded by newer generations, the original X6 M remains a desirable vehicle for enthusiasts. The S63B44 engine proved to be a robust and reliable powerplant when properly maintained. On the used car market, well-maintained examples command a premium price, reflecting their performance capabilities and exclusivity. The X6 M paved the way for a wave of performance SUVs from other manufacturers, solidifying its place in automotive history.
