The BMW M6 Gran Coupe (F06M LCI), specifically the facelifted version produced from 2014 to 2018, represents the high-performance iteration of BMW’s 6 Series Gran Coupe. This four-door coupe combined the luxurious appointments and practicality of a sedan with the dynamic handling expected of the M brand. The 2014 facelift, designated LCI (Life Cycle Impulse) by BMW, brought subtle styling revisions and updated technology. The model featured here is equipped with the potent 4.4-liter twin-turbocharged V8 engine, producing 560 horsepower, paired with a seven-speed M Sport automatic transmission. This configuration positioned the M6 Gran Coupe at the very top of the 6 Series lineup, offering a compelling alternative to traditional high-performance sedans and coupes.
Technical Specifications
| Brand | BMW |
| Model | M6 |
| Generation | M6 Gran Coupe (F06M LCI, facelift 2014) |
| Type (Engine) | 4.4 V8 (560 Hp) |
| Start of production | 2014 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 13.9 l/100 km (16.9 US mpg, 20.3 UK mpg, 7.2 km/l) |
| Fuel consumption (economy) – extra urban | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| Fuel consumption (economy) – combined | 9.9 l/100 km (23.8 US mpg, 28.5 UK mpg, 10.1 km/l) |
| CO2 emissions | 231 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 | 3.3 kg/Hp, 298.7 Hp/tonne |
| Weight-to-torque ratio | 2.8 kg/Nm, 362.7 Nm/tonne |
| Power | 560 Hp @ 6000-7000 rpm |
| Power per litre | 127.4 Hp/l |
| Torque | 680 Nm @ 1500-5750 rpm (501.54 lb.-ft. @ 1500-5750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | S63B44B |
| 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-Turbo, Intercooler |
| Engine oil capacity | 8.4 l (8.88 US qt | 7.39 UK qt) |
| Coolant | 18.5 l (19.55 US qt | 16.28 UK qt) |
| Kerb Weight | 1875 kg (4133.67 lbs.) |
| Max. weight | 2410 kg (5313.14 lbs.) |
| Max load | 535 kg (1179.47 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Trunk (boot) space – maximum | 1265 l (44.67 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5011 mm (197.28 in.) |
| Width | 1899 mm (74.76 in.) |
| Height | 1395 mm (54.92 in.) |
| Wheelbase | 2964 mm (116.69 in.) |
| Front track | 1631 mm (64.21 in.) |
| Rear (Back) track | 1612 mm (63.46 in.) |
| Ride height (ground clearance) | 110 mm (4.33 in.) |
| Drag coefficient (Cd) | 0.33 |
| Minimum turning circle (turning diameter) | 12.5 m (41.01 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission |
| Front suspension | Independent multi-link suspension |
| 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 | 265/35 R20 99Y; 295/30 R20 101Y |
| Wheel rims size | 9.5J x 20; 10.5J x 20 |
INTRODUCTION
The F06M LCI M6 Gran Coupe, produced between 2014 and 2018, represents the pinnacle of BMW’s 6 Series Gran Coupe range. Building upon the already luxurious and sporty 6 Series, the M6 Gran Coupe added a significant performance boost courtesy of the S63B44B engine. This engine, a 4.4-liter twin-turbocharged V8, was meticulously engineered by BMW’s M division to deliver exhilarating acceleration and a refined driving experience. The LCI facelift brought subtle cosmetic enhancements, including revised headlights and taillights, along with updated interior technology. The M6 Gran Coupe aimed to appeal to drivers seeking a blend of practicality, luxury, and uncompromising performance in a stylish four-door package.
Powertrain & Engine Architecture
The heart of the M6 Gran Coupe is the S63B44B engine. This 4.4-liter V8 utilizes a hot-V configuration, meaning the turbochargers are positioned within the V-shaped bank of cylinders. This design minimizes turbocharger lag and improves throttle response. The engine employs direct fuel injection, delivering fuel directly into the combustion chambers for increased efficiency and power. Valvetrain features BMW’s Double-VANOS variable valve timing and lift control, optimizing engine performance across the rev range. The engine produces 560 horsepower at 6000-7000 rpm and a substantial 680 Nm (501.54 lb-ft) of torque between 1500 and 5750 rpm.
The engine is mated to a seven-speed M Sport automatic transmission with paddle shifters. This transmission is specifically tuned for performance, offering quick and precise gear changes. The transmission features Drivelogic, allowing the driver to select from different shift programs to tailor the driving experience to their preferences. The powertrain is longitudinally mounted, driving the rear wheels.
Driving Characteristics
The M6 Gran Coupe with the 7-speed automatic delivers a remarkably smooth yet potent driving experience. While not as raw or visceral as a manual transmission equipped M6, the automatic provides seamless gear changes and allows the driver to focus on steering and braking. The broad torque curve of the S63B44B engine ensures strong acceleration in any gear, making overtaking effortless. The car’s 0-60 mph time of around 4 seconds and a limited top speed of 155 mph (250 km/h) demonstrate its impressive performance capabilities. Compared to the standard 6 Series Gran Coupe, the M6 offers significantly sharper handling, thanks to its stiffer suspension and more responsive steering. While the ride is firmer, it remains comfortable enough for daily driving. Compared to other M6 variants, the automatic transmission offers a more relaxed driving experience than the available seven-speed dual-clutch transmission, prioritizing comfort over ultimate track performance.
Equipment & Trim Levels
The M6 Gran Coupe came generously equipped as standard. Interior features included leather upholstery, power-adjustable and heated front seats with memory function, a premium sound system, and a navigation system. Standard exterior features included M-specific aerodynamic enhancements, such as a front splitter, side skirts, and a rear diffuser. Optional extras included carbon fiber trim, upgraded leather options, a head-up display, and active roll stabilization. The interior dashboard configuration was typical of BMW’s luxury offerings, with a driver-focused layout and high-quality materials.
Chassis & Braking
The M6 Gran Coupe features an independent multi-link suspension at both the front and rear, optimized for performance and handling. The suspension is stiffer than that of the standard 6 Series Gran Coupe, providing reduced body roll and improved responsiveness. The car is equipped with ventilated disc brakes at all four corners, providing ample stopping power. The braking system is assisted by ABS (Anti-lock Braking System) and other electronic stability control systems. The M6 Gran Coupe’s chassis is designed to handle the increased power and torque of the S63B44B engine, delivering a confident and stable driving experience.
Market Reception & Comparison
The M6 Gran Coupe was generally well-received by automotive critics, who praised its performance, luxury, and styling. However, some critics noted its high price tag and complex technology. Compared to other trims in the 6 Series lineup, the M6 Gran Coupe offered a significant performance upgrade but came at a substantial cost. Fuel economy, while respectable for a high-performance vehicle, was lower than that of the more fuel-efficient 6 Series models. Reliability was generally good, although the complex twin-turbocharged engine and advanced technology could potentially lead to higher maintenance costs.
Legacy
The F06M LCI M6 Gran Coupe remains a desirable vehicle in the used car market. Its combination of performance, luxury, and practicality continues to appeal to enthusiasts. The S63B44B engine, while complex, has proven to be relatively reliable when properly maintained. Regular servicing and preventative maintenance are crucial to ensure the long-term health of this high-performance powertrain. The M6 Gran Coupe represents a unique offering in the high-performance luxury segment, providing a compelling alternative to traditional coupes and sedans.
