The BMW 740i, part of the G70 generation of the 7 Series launched in November 2022, represents a significant evolution in BMW’s flagship sedan. Positioned as a mid-range offering within the G70 lineup, it bridges the gap between the entry-level 735i and the high-performance M760i. This variant distinguishes itself through its 3.0-liter inline-six engine, incorporating mild hybrid technology and paired with an 8-speed Steptronic automatic transmission. The 740i aims to deliver a balance of refined luxury, strong performance, and improved fuel efficiency, catering to buyers seeking a sophisticated and technologically advanced grand touring experience.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series (G70) |
| Type (Engine) | 740i (380 Hp) Mild Hybrid Steptronic |
| Start of production | November, 2022 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 7-8 l/100 km (33.6 – 29.4 US mpg, 40.4 – 35.3 UK mpg, 14.3 – 12.5 km/l) |
| CO2 emissions (WLTP) | 159-183 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.4 sec |
| Acceleration 0 – 62 mph | 5.4 sec |
| Acceleration 0 – 60 mph | 5.1 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 5.5 kg/Hp, 181.8 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 258.4 Nm/tonne |
| Battery voltage | 48 V |
| Battery location | Inside the trunk |
| Electric motor power | 18 Hp |
| Electric motor Torque | 200 Nm (147.51 lb.-ft.) |
| Electric motor location | Integrated into the transmission |
| System power | 380 Hp |
| System torque | 540 Nm (398.28 lb.-ft.) |
| Power | 380 Hp @ 5200-6250 rpm |
| Power per litre | 126.8 Hp/l |
| Torque | 520 Nm @ 1850-5000 rpm (383.53 lb.-ft. @ 1850-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58 |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC |
| Kerb Weight | 2090-2165 kg (4607.66 – 4773.01 lbs.) |
| Max. weight | 2785 kg (6139.87 lbs.) |
| Max load | 620-695 kg (1366.87 – 1532.21 lbs.) |
| Trunk (boot) space – minimum | 540 l (19.07 cu. ft.) |
| Fuel tank capacity | 74 l (19.55 US gal | 16.28 UK gal) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 5391 mm (212.24 in.) |
| Width | 1950 mm (76.77 in.) |
| Height | 1544 mm (60.79 in.) |
| Wheelbase | 3215 mm (126.57 in.) |
| Front track | 1713 mm (67.44 in.) |
| Rear (Back) track | 1736 mm (68.35 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle | 12.9 m (42.32 ft.) |
| Drivetrain Architecture | Rear wheel drive. MHEV. ICE and electric motor drive rear wheels. |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS, 4-wheel steering |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Tires size | 245/50 R19 |
| Wheel rims size | 8.5J x 19 |
Powertrain & Engine Architecture
At the heart of the 740i lies BMW’s B58 3.0-liter inline-six engine. This engine is a cornerstone of BMW’s modern powertrain strategy, known for its smooth power delivery and efficiency. The B58 utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and lift system. The mild hybrid system, a 48V setup, adds an electric motor integrated into the transmission, providing an additional 18 horsepower and 200 Nm (147.51 lb.-ft.) of torque. This electric assist enables features like smoother start-stop operation, extended coasting, and a slight power boost during acceleration. The 8-speed Steptronic automatic transmission is meticulously tuned to complement the engine’s characteristics, offering both seamless shifts and responsive performance.
Driving Characteristics
The 740i delivers a refined and composed driving experience. The combination of the inline-six engine and the mild hybrid system results in a broad torque curve, providing strong acceleration from low engine speeds. While not as overtly sporty as the M760i, the 740i’s 5.1-second 0-60 mph time is more than adequate for most drivers. The Steptronic transmission contributes to a relaxed cruising experience, while also allowing for quick downshifts when needed. The air suspension provides a comfortable ride, effectively isolating passengers from road imperfections. Compared to higher-output variants, the 740i prioritizes smoothness and efficiency over outright performance, making it an ideal choice for long-distance travel.
Equipment & Trim Levels
The 740i comes standard with a comprehensive suite of luxury features, including premium leather upholstery, power-adjustable front seats with massage function, a panoramic sunroof, and a Bowers & Wilkins Diamond Surround Sound System. The interior boasts a minimalist design with a curved display integrating the instrument cluster and infotainment screen. Standard driver-assistance systems include adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras include rear-seat entertainment systems, individual climate control for rear passengers, and a variety of interior trim options.
Chassis & Braking
The G70 7 Series utilizes a robust chassis with a double-wishbone front suspension and an independent multi-link rear suspension, both incorporating air suspension. This setup provides a comfortable ride and precise handling. The 740i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Standard safety features include ABS, traction control, and stability control. Available options include 4-wheel steering, which enhances maneuverability at low speeds and stability at high speeds.
Market Reception & Comparison
The 740i has been generally well-received by automotive critics, praised for its refined driving experience, luxurious interior, and advanced technology. Compared to the 735i, the 740i offers a noticeable performance upgrade thanks to its larger engine and mild hybrid system. While the M760i provides even more power and a sportier driving experience, the 740i strikes a compelling balance between performance and comfort. Fuel economy is respectable for a vehicle of its size and class, with the mild hybrid system contributing to improved efficiency.
Legacy
The B58 engine has proven to be a reliable and durable powerplant, and the integration of mild hybrid technology in the 740i is expected to further enhance its longevity. As a used car, the G70 740i is likely to hold its value well due to its reputation for luxury, technology, and build quality. The combination of a smooth inline-six engine, a refined automatic transmission, and a comfortable ride makes it a desirable choice for buyers seeking a premium grand touring sedan.
