The BMW 4 Series Coupe (G22 LCI), specifically the M440i xDrive Steptronic model, represents the facelifted iteration of the G22 generation, introduced for the 2025 model year. This variant occupies the performance-oriented mid-to-upper range of the 4 Series Coupe lineup, blending potent power with BMW’s xDrive all-wheel-drive system and a mild-hybrid powertrain. The LCI (Life Cycle Impulse) updates brought revised styling, enhanced technology, and refinements to the engine and chassis. It builds upon the foundation of the G22 platform, which debuted in 2020, offering a more focused driving experience than the closely related 3 Series sedan.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22 LCI, facelift 2024) |
| Type (Engine) | M440i (392 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | September, 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 7.7 l/100 km (30.5 US mpg, 36.7 UK mpg, 13 km/l) |
| CO2 emissions (WLTP) | 175 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.4 sec |
| Acceleration 0 – 62 mph | 4.4 sec |
| Acceleration 0 – 60 mph | 4.2 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 4.5 kg/Hp, 221.5 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 305.1 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 | 12 Hp |
| Electric motor Torque | 200 Nm (147.51 lb.-ft.) |
| Electric motor location | Front, Longitudinal |
| System power | 392 Hp |
| Power | 381 Hp @ 5200-6250 rpm |
| Power per litre | 127.1 Hp/l |
| Torque | 540 Nm @ 1900-4800 rpm (398.28 lb.-ft. @ 1900-4800 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.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | Double-VANOS, VALVETRONIC |
| Engine systems | Start & Stop System, Particulate filter |
| Kerb Weight | 1770 kg (3902.18 lbs.) |
| Max. weight | 2255 kg (4971.42 lbs.) |
| Max load | 485 kg (1069.24 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 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 | 4770 mm (187.8 in.) |
| Width | 1852 mm (72.91 in.) |
| Width including mirrors | 2081 mm (81.93 in.) |
| Height | 1393 mm (54.84 in.) |
| Wheelbase | 2851 mm (112.24 in.) |
| Front track | 1583 mm (62.32 in.) |
| Rear (Back) track | 1592 mm (62.68 in.) |
| Front overhang | 858 mm (33.78 in.) |
| Rear overhang | 1061 mm (41.77 in.) |
| Ride height (ground clearance) | 129 mm (5.08 in.) |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, mixed mode operation. |
| 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 | Front: 225/45 R18 or 225/40 R19; Rear: 255/40 R18 or 255/35 R19 |
| Wheel rims size | Front: 7.5J x 18 or 8J x 19; Rear: 8.5J x 18 or 8.5J x 19 |
Powertrain & Engine Architecture
At the heart of the M440i xDrive is BMW’s B58 3.0-liter inline-six engine. This engine is renowned 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 efficiency and performance across the rev range. The mild-hybrid system, incorporating a 48V starter-generator, provides an additional 12 horsepower and 200 Nm (147.51 lb.-ft.) of torque, enabling smoother start-stop operation and a slight boost during acceleration. The engine is paired with BMW’s eight-speed Steptronic automatic transmission, known for its quick and precise shifts. The transmission is specifically tuned to complement the engine’s characteristics, offering both efficient cruising and responsive downshifts.
Driving Characteristics
The M440i xDrive delivers a compelling driving experience. The 392 hp and 540 Nm (398.28 lb.-ft.) of torque provide brisk acceleration, with a 0-60 mph time of around 4.2 seconds. The xDrive all-wheel-drive system ensures excellent traction in various conditions, enhancing stability and confidence. The mild-hybrid system contributes to a seamless power delivery, minimizing turbo lag and providing a more linear response. Compared to lower-powered 4 Series variants, such as the 430i, the M440i offers a significantly more engaging and dynamic driving experience. While not as track-focused as the M4, it provides a substantial performance upgrade for everyday driving and spirited weekend excursions. The Steptronic transmission offers both automatic and manual shift modes, allowing drivers to tailor the driving experience to their preferences.
Equipment & Trim Levels
The M440i xDrive typically comes well-equipped as standard. Key features include BMW’s Live Cockpit Professional (digital instrument cluster and infotainment system), leather upholstery, power-adjustable seats with memory function, automatic climate control, and a premium sound system. Exterior features often include M Sport styling cues, such as unique front and rear bumpers, side skirts, and a rear spoiler. Optional extras include adaptive suspension, upgraded leather options, a head-up display, and various driver-assistance systems like lane-keeping assist and adaptive cruise control. The LCI update brought further enhancements to the interior, including a redesigned center console and updated infotainment system.
Chassis & Braking
The 4 Series Coupe features a sophisticated chassis designed for both comfort and handling. The M440i benefits from M Sport suspension tuning, which lowers the ride height and stiffens the dampers for improved body control. The front suspension utilizes a spring strut design with a transverse stabilizer, while the rear suspension employs an independent multi-link setup, also with a stabilizer bar. Braking duties are handled by ventilated discs at all four corners, providing ample stopping power. The ABS (Anti-lock braking system) and electronic stability control systems further enhance safety and control.
Market Reception & Comparison
The M440i xDrive has been generally well-received by automotive critics. It’s praised for its potent engine, refined handling, and luxurious interior. Compared to other performance coupes in its class, such as the Audi S5 Coupe and Mercedes-Benz C43 Coupe, the M440i is often lauded for its engaging driving dynamics and responsive powertrain. Fuel economy is respectable for a performance coupe, with the WLTP rating of 7.7 l/100 km (30.5 US mpg). Reliability has been generally good, although some owners have reported minor issues with the infotainment system.
Legacy
The B58 engine has proven to be a robust and reliable powerplant, and the M440i xDrive is expected to hold its value well in the used car market. The combination of performance, luxury, and technology makes it a desirable option for enthusiasts seeking a sporty and refined coupe. The mild-hybrid system, while not a full hybrid, represents a step towards greater efficiency and sustainability. As BMW continues to electrify its lineup, the M440i xDrive serves as a bridge between traditional internal combustion engines and the future of electric mobility.
