The BMW 750i (G11) represents the high-performance variant of the sixth-generation 7 Series, produced from 2015 to 2019. Positioned as a flagship luxury sedan, the 750i aimed to deliver a blend of opulent comfort and exhilarating performance, competing directly with models like the Mercedes-Benz S-Class and Audi A8. This particular iteration, equipped with the N63B44C engine and Steptronic 8-speed automatic transmission, served as a step up from the 740i and a more performance-focused alternative to the diesel-powered 750d available in European markets.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series (G11) |
| Type (Engine) | 750i (450 Hp) Steptronic |
| Start of production | 2015 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 11.1-11.4 l/100 km (21.2 – 20.6 US mpg) |
| Fuel consumption (economy) – extra urban | 6.1-6.2 l/100 km (38.6 – 37.9 US mpg) |
| Fuel consumption (economy) – combined | 7.9-8.1 l/100 km (29.8 – 29 US mpg) |
| CO2 emissions | 184-189 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 kg/Hp, 247.3 Hp/tonne |
| Weight-to-torque ratio | 2.8 kg/Nm, 357.1 Nm/tonne |
| Power | 450 Hp @ 5500-6000 rpm |
| Power per litre | 102.4 Hp/l |
| Torque | 650 Nm @ 1800-4500 rpm (479.42 lb.-ft. @ 1800-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N63B44C |
| 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 l (10.57 US qt | 8.8 UK qt) |
| Coolant | 9.2 l (9.72 US qt | 8.09 UK qt) |
| Kerb Weight | 1820 kg (4012.41 lbs.) |
| Max. weight | 2515 kg (5544.63 lbs.) |
| Max load | 695 kg (1532.21 lbs.) |
| Trunk (boot) space – minimum | 515 l (18.19 cu. ft.) |
| Fuel tank capacity | 78 l (20.61 US gal | 17.16 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 5098 mm (200.71 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1478 mm (58.19 in.) |
| Wheelbase | 3070 mm (120.87 in.) |
| Front track | 1612 mm (63.46 in.) |
| Rear (Back) track | 1640 mm (64.57 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 12.3 m (40.35 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 | 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 |
| Tires size | 245/50 R18 100Y; 245/45 R19; 275/40 R19; 245/40 R20; 275/35 R20; 245/35 R21; 275/30 R21 |
| Wheel rims size | 8J x 18; 8.5J x 19; 9.5J x 19; 8.5J x 20; 10J x 20; 8.5J x 21; 10J x 21 |
Powertrain & Engine Architecture
At the heart of the 750i lies the N63B44C, a 4.4-liter twin-turbocharged V8 engine. This engine is a significant evolution of the earlier N63 series, incorporating improvements to fuel injection, turbocharger technology, and thermal management. The direct injection system, coupled with twin scroll turbochargers, delivers a broad torque curve and responsive power delivery. The engine produces 450 horsepower at 5,500-6,000 rpm and a substantial 650 Nm (479 lb-ft) of torque between 1,800 and 4,500 rpm. The Steptronic 8-speed automatic transmission is specifically tuned to handle the engine’s output, offering smooth shifts and quick response. It features adaptive shift programs that adjust to the driver’s style and road conditions.
Driving Characteristics
The 750i’s driving experience is characterized by a refined yet powerful demeanor. The combination of the potent V8 and the 8-speed automatic results in brisk acceleration – 0 to 60 mph in approximately 4.5 seconds. While not as overtly sporty as some competitors, the 750i provides ample power for effortless highway cruising and confident overtaking. The automatic transmission’s gear ratios are optimized for both fuel efficiency and performance, with close ratios in the lower gears for quick acceleration and taller ratios for relaxed cruising. Compared to the 740i, the 750i offers a noticeably more substantial power boost, resulting in a more engaging and dynamic driving experience.
Equipment & Trim Levels
The 750i typically came standard with a high level of equipment, reflecting its flagship status. Standard features included leather upholstery, power-adjustable heated front seats, a premium sound system, a large infotainment screen with iDrive controller, and a comprehensive suite of safety features. Optional extras were plentiful, including massaging seats, rear-seat entertainment, a panoramic sunroof, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. Interior trim options ranged from luxurious wood veneers to aluminum accents, allowing buyers to personalize their vehicle.
Chassis & Braking
The G11 7 Series utilizes a sophisticated chassis design featuring a double-wishbone front suspension and an independent multi-link rear suspension. Air suspension was standard, providing a comfortable ride and the ability to adjust ride height. The 750i benefited from larger brakes compared to the lower-trim models, with ventilated discs at all four corners. ABS, stability control, and traction control were standard safety features. The suspension tuning prioritized comfort and stability, but the 750i also offered an optional Dynamic Handling Package that included active roll stabilization and more aggressive damper settings for a sportier driving experience.
Market Reception & Comparison
The 750i was generally well-received by automotive critics, who praised its powerful engine, luxurious interior, and refined driving experience. However, some reviewers noted that the car’s size and weight could make it feel less agile than some competitors. Compared to the 740i, the 750i offered a significant performance upgrade, but at a higher price point. Fuel economy was respectable for a V8-powered luxury sedan, but not class-leading. The 750d, available in Europe, offered comparable performance with slightly better fuel economy, but the V8’s character and sound were often preferred by enthusiasts.
Legacy
The N63B44C engine, while initially prone to some oil consumption issues, proved to be a robust and reliable powerplant with proper maintenance. The G11 750i has maintained a strong following in the used car market, appealing to buyers who prioritize performance and luxury. Regular maintenance, including oil changes and inspections of the cooling system, is crucial for long-term reliability. Today, the G11 750i represents a compelling value proposition for those seeking a high-performance luxury sedan with a proven track record.
