The BMW 4 Series Gran Coupe (G26 LCI), specifically the M440i xDrive Steptronic model, represents the facelifted version of the second-generation 4 Series Gran Coupe, launched in July 2024 for the 2025 model year. This variant occupies the performance-oriented mid-to-upper range of the 4 Series Gran Coupe lineup, blending sporty performance with the practicality of a five-door coupe. It builds upon the foundation of the G26 platform, first introduced in 2021, incorporating mild-hybrid technology to enhance efficiency and responsiveness. The LCI (Life Cycle Impulse) facelift brings styling updates, interior refinements, and revised technology features.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (G26 LCI, facelift 2024) |
| Type (Engine) | M440i (374 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | July, 2024 |
| End of production | 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 8.2-8.8 l/100 km (28.7 – 26.7 US mpg, 34.4 – 32.1 UK mpg, 12.2 – 11.4 km/l) |
| CO2 emissions (WLTP) | 186-199 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), Electronically limited |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 4.9 kg/Hp, 204.9 Hp/tonne |
| Weight-to-torque ratio | 3.7 kg/Nm, 274 Nm/tonne |
| Gross battery capacity | 0.4 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the front hood |
| Electric motor power | 11 Hp |
| Electric motor Torque | 25 Nm (18.44 lb.-ft.) |
| Electric motor location | Front, Longitudinal |
| Power | 374 Hp @ 5500-6500 rpm |
| Torque | 500 Nm @ 1900-5000 rpm (368.78 lb.-ft. @ 1900-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30B |
| 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 | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | VALVETRONIC, Double-VANOS |
| Engine oil capacity | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1825 kg (4023.44 lbs.) |
| Max. weight | 2380 kg (5247 lbs.) |
| Max load | 555 kg (1223.57 lbs.) |
| Trunk (boot) space – minimum | 470 l (16.6 cu. ft.) |
| Trunk (boot) space – maximum | 1290 l (45.56 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4783 mm (188.31 in.) |
| Width | 1852 mm (72.91 in.) |
| Width including mirrors | 2073 mm (81.61 in.) |
| Height | 1442 mm (56.77 in.) |
| Wheelbase | 2856 mm (112.44 in.) |
| Front track | 1585 mm (62.4 in.) |
| Rear (Back) track | 1612 mm (63.46 in.) |
| Front overhang | 862 mm (33.94 in.) |
| Rear overhang | 1065 mm (41.93 in.) |
| Ride height (ground clearance) | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| 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 | 245/45 R18 |
| Wheel rims size | 8.5J x 18 |
Powertrain & Engine Architecture
At the heart of the M440i xDrive Gran Coupe lies the BMW B58B30B 3.0-liter inline-six engine. This engine is a cornerstone of BMW’s modern powertrain lineup, known for its smooth power delivery and responsiveness. The B58 utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and lift system, along with Double-VANOS variable camshaft timing. These technologies work in concert to optimize combustion efficiency and power output across the rev range. The mild-hybrid system, a 48V setup, adds a small electric motor integrated into the drivetrain. This motor provides a power boost during acceleration and allows for smoother start-stop operation, contributing to improved fuel economy. The engine is paired with an 8-speed Steptronic automatic transmission, renowned for its quick and precise shifts. The xDrive all-wheel-drive system intelligently distributes torque between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The M440i xDrive Gran Coupe delivers a compelling driving experience. The 374 horsepower and 368 lb-ft of torque provide brisk acceleration, with a 0-60 mph time of around 4.5 seconds. The mild-hybrid system provides an immediate boost, minimizing turbo lag and enhancing responsiveness. The 8-speed automatic transmission is well-tuned, offering smooth gear changes in both automatic and manual modes. The xDrive all-wheel-drive system provides excellent grip, inspiring confidence in all weather conditions. Compared to lower-powered 4 Series Gran Coupe variants, such as the 430i, the M440i offers a significantly more engaging and dynamic driving experience. While not as track-focused as the M4 Gran Coupe, it strikes a good balance between performance and everyday usability.
Equipment & Trim Levels
The M440i xDrive Gran Coupe comes standard with a comprehensive list of features, including BMW’s iDrive infotainment system with a large touchscreen display, premium upholstery, automatic climate control, and a suite of advanced driver-assistance systems. Optional extras include a premium sound system, adaptive suspension, a head-up display, and various cosmetic enhancements. Interior trim options typically include aluminum, wood, and carbon fiber accents. The standard seats are sport-bolstered, providing good support during spirited driving. The LCI facelift brought updated interior materials and a redesigned center console.
Chassis & Braking
The G26 Gran Coupe utilizes a sophisticated chassis design, featuring a MacPherson strut front suspension and a multi-link rear suspension. The suspension is tuned to provide a balance between comfort and handling. The M440i variant typically features stiffer springs and dampers compared to lower-trim models. The braking system consists of ventilated discs at all four corners, providing ample stopping power. ABS, stability control, and traction control are standard features. The steering is precise and well-weighted, offering good feedback to the driver.
Market Reception & Comparison
The BMW 4 Series Gran Coupe, and particularly the M440i variant, has been well-received by automotive critics. It’s praised for its stylish design, engaging driving dynamics, and spacious interior. The mild-hybrid system is seen as a positive addition, improving fuel economy without sacrificing performance. Compared to competitors such as the Audi A5 Sportback and Mercedes-Benz C-Class Coupe, the 4 Series Gran Coupe is often lauded for its superior handling and more engaging driving experience. Fuel economy figures are competitive within its class, and the B58 engine has proven to be relatively reliable.
Legacy
The B58 engine has established a reputation for reliability and durability, making the M440i xDrive Gran Coupe a potentially sound long-term investment. The mild-hybrid system, while relatively new, is expected to contribute to improved longevity. As the facelifted G26 LCI models enter the used car market, they are likely to hold their value well due to their combination of performance, practicality, and modern technology. The 4 Series Gran Coupe continues to be a popular choice for buyers seeking a stylish and engaging alternative to traditional sedans and coupes.
