The BMW 4 Series Gran Coupe (G26 LCI), specifically the M440i variant introduced with the 2024 facelift, represents a blend of performance, practicality, and modern technology within BMW’s four-door coupe lineup. Production commenced in July 2024, positioning this model as a mid-to-high-range offering within the G26 generation, which itself is based on the BMW CLAR architecture. The LCI (Life Cycle Impulse) updates brought revised styling, enhanced technology, and refinements to the powertrain, solidifying its position as a competitor to vehicles like the Audi A5 Sportback and Mercedes-Benz CLS.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (G26 LCI, facelift 2024) |
| Type (Engine) | M440i (386 Hp) Mild Hybrid Steptronic |
| Start of production | July, 2024 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9 l/100 km (26.1 US mpg) |
| Fuel consumption (extra urban) | 7.4 l/100 km (31.8 US mpg) |
| Fuel consumption (combined) | 8.4 l/100 km (28 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Weight-to-power ratio | 4.9 kg/Hp |
| Weight-to-torque ratio | 3.5 kg/Nm |
| Gross battery capacity | 0.4 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 11 Hp |
| Electric motor Torque | 25 Nm (18.44 lb.-ft.) |
| System power | 386 Hp @ 5200-6250 rpm |
| System torque | 540 Nm @ 1900-4800 rpm (398.28 lb.-ft.) |
| Engine Power | 375 Hp |
| 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 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Kerb Weight | 1882 kg (4149.1 lbs.) |
| Max. weight | 2415 kg (5324.16 lbs.) |
| Trunk (boot) space (min) | 470 l (16.6 cu. ft.) |
| Trunk (boot) space (max) | 1291 l (45.59 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal) |
| Length | 4787 mm (188.46 in.) |
| Width | 1852 mm (72.91 in.) |
| Height | 1442 mm (56.77 in.) |
| Wheelbase | 2856 mm (112.44 in.) |
| Number of gears | 8 |
| Gearbox type | Automatic (Steptronic) |
Powertrain & Engine Architecture
At the heart of the 2024 M440i Gran Coupe lies the BMW B58B30M2 engine, a 3.0-liter inline-six cylinder powerplant. This engine benefits from BMW’s extensive experience in forced induction, utilizing a twin-scroll turbocharger and direct fuel injection to deliver a potent 375 horsepower and 369 lb-ft of torque. The “M440i” designation signifies the inclusion of BMW’s 48V mild-hybrid system. This system incorporates a 48V starter-generator, enabling features like smoother auto start-stop operation, extended coasting, and a small power boost during acceleration (approximately 11 hp and 25 Nm). The engine’s valvetrain employs BMW’s VALVETRONIC technology and Double-VANOS variable valve timing, optimizing efficiency and responsiveness across the rev range. Power is transmitted to the rear wheels via an eight-speed Steptronic automatic transmission, known for its quick and smooth shifts.
Driving Characteristics
The M440i Gran Coupe delivers a refined yet engaging driving experience. The 48V mild-hybrid system contributes to a near-instantaneous response from a standstill, minimizing turbo lag. The eight-speed Steptronic transmission is well-tuned, providing seamless gear changes in both automatic and manual modes. Acceleration from 0 to 60 mph is achieved in a brisk 4.6 seconds, and the electronically limited top speed of 130 mph provides ample performance for most driving situations. Compared to lower-powered 4 Series variants, such as the 430i, the M440i offers significantly more power and torque, resulting in a more confident and exhilarating driving experience. While not as overtly sporty as the full-fledged M4, the M440i strikes a compelling balance between performance and everyday usability.
Equipment & Trim Levels
The M440i Gran Coupe comes standard with a comprehensive suite of features, including BMW’s iDrive 8 infotainment system with a curved display, premium upholstery (typically Sensatec or Leatherette), automatic climate control, and a range of advanced driver-assistance systems. Optional extras include features like a premium Harman Kardon sound system, adaptive suspension, ventilated front seats, and a head-up display. The LCI facelift brought updated interior trim options and new exterior color choices. The Gran Coupe body style itself offers increased practicality compared to the standard 4 Series Coupe, with easier access to the rear seats and a larger, more usable trunk.
Chassis & Braking
The G26 Gran Coupe utilizes a sophisticated chassis design, featuring a spring strut front suspension and an independent multi-link rear suspension. Both ends incorporate a stabilizer bar to minimize body roll during cornering. The M440i typically features upgraded brakes compared to lower trims, with ventilated discs at all four corners. The standard braking system is augmented by ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), and other electronic aids. The steering system is an electric power-assisted rack-and-pinion setup, providing precise and responsive steering feel.
Market Reception & Comparison
The 2024 BMW 4 Series Gran Coupe M440i has been generally well-received by automotive critics. Praise has been directed towards its powerful engine, refined driving dynamics, and luxurious interior. Fuel economy figures of around 28 US mpg combined are respectable for a vehicle of this performance caliber. Compared to the 430i, the M440i offers a substantial performance upgrade, but at a higher price point. The mild-hybrid system contributes to improved fuel efficiency and reduced emissions compared to the previous generation M440i. Reliability reports are still emerging for the 2024 model year, but BMW has a generally good reputation for build quality and long-term durability.
Legacy
The B58 engine family, of which the B58B30M2 is a member, has proven to be a robust and reliable powerplant. The inclusion of the 48V mild-hybrid system in the M440i represents BMW’s ongoing efforts to improve fuel efficiency and reduce emissions. As the G26 generation matures, the M440i is expected to hold its value well in the used car market, appealing to buyers seeking a blend of performance, luxury, and practicality. The Gran Coupe body style, with its combination of coupe-like aesthetics and four-door convenience, continues to be a popular choice among BMW enthusiasts.
