The BMW 4 Series Coupe (G22) M440i, produced from 2021 through January 2024, represents a compelling blend of performance and efficiency within the broader G22 4 Series lineup. Positioned as a near-top-tier variant, it slots below the full-fledged M4 but offers a significant performance upgrade over the 430i models. This coupe leverages a mild hybrid powertrain to enhance both power delivery and fuel economy, appealing to drivers seeking a sporty yet refined grand touring experience. The M440i was a key model for BMW in the US and global markets, offering a sophisticated alternative to more focused performance cars.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22) |
| Type | M440i (374 Hp) Mild Hybrid Steptronic |
| Start of production | 2021 |
| End of production | January, 2024 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 7.4-8.1 l/100 km (31.8 – 29 US mpg, 38.2 – 34.9 UK mpg, 13.5 – 12.3 km/l) |
| CO2 emissions (WLTP) | 167-184 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 4.5 kg/Hp, 220.6 Hp/tonne |
| Weight-to-torque ratio | 3.4 kg/Nm, 295 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 @ 5500-6000 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-power turbo, Intercooler |
| Valvetrain | Double-VANOS, VALVETRONIC |
| Engine oil capacity | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Coolant | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Kerb Weight | 1695 kg (3736.84 lbs.) |
| Max. weight | 2190 kg (4828.12 lbs.) |
| Max load | 495 kg (1091.29 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 | 4768 mm (187.72 in.) |
| Width | 1852 mm (72.91 in.) |
| Width including mirrors | 2081 mm (81.93 in.) |
| Height | 1386 mm (54.57 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 | 1059 mm (41.69 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 11.4 m (37.4 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 | 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, Rear: 255/40 R18 |
| Wheel rims size | Front: 7.5J x 18, Rear: 8.5J x 18 |
INTRODUCTION
The G22 generation of the BMW 4 Series Coupe debuted in 2020, representing the successor to the F32/F33 4 Series. The M440i variant, introduced in 2021, quickly became a popular choice for buyers seeking a balance of performance, luxury, and technology. Built on the BMW Cluster Architecture (CLAR) platform, the G22 prioritizes a lower center of gravity and improved weight distribution compared to its predecessor. The M440i specifically targets enthusiasts who desire a spirited driving experience without the outright track focus of the M4.
Powertrain & Engine Architecture
At the heart of the M440i lies the BMW B58B30B 3.0-liter inline-six engine. This engine is a cornerstone of BMW’s modern powertrain strategy, known for its smooth power delivery and robust construction. The B58 utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and Double-VANOS variable camshaft timing systems. These technologies work in concert to optimize efficiency and responsiveness across the rev range. The “mild hybrid” component consists of a 48-volt electrical system and a 11 hp electric motor integrated into the drivetrain. This system provides a power boost during acceleration, enables smoother start-stop operation, and allows for regenerative braking to recoup energy. The engine is paired with BMW’s eight-speed Steptronic automatic transmission, renowned for its quick and precise shifts. This transmission features adaptive shift programs that adjust to the driver’s style and driving conditions.
Driving Characteristics
The M440i delivers a compelling driving experience characterized by strong acceleration and confident handling. The 374 horsepower and 368 lb-ft of torque provide ample power for both highway cruising and spirited driving. The mild hybrid system contributes to a noticeable improvement in low-end torque, minimizing turbo lag and providing a more immediate response. The eight-speed Steptronic transmission is well-tuned, offering smooth and seamless gear changes. Compared to the 430i models, the M440i offers a significantly more engaging driving experience. While not as raw or track-focused as the M4, the M440i provides a satisfying balance of performance and comfort. The rear-wheel-drive configuration contributes to a balanced chassis and predictable handling.
Equipment & Trim Levels
The M440i came standard with a generous array of features, including BMW’s iDrive infotainment system with a 12.3-inch touchscreen display, a digital instrument cluster, leather upholstery, and a premium sound system. Standard safety features included automatic emergency braking, lane departure warning, and adaptive cruise control. Optional extras included a head-up display, ventilated front seats, a panoramic sunroof, and various driver-assistance systems. Interior trim options ranged from aluminum to wood, allowing buyers to personalize the cabin to their preferences. The M440i also featured unique exterior styling cues, such as a mesh-pattern grille, M Sport brakes, and aerodynamic enhancements.
Chassis & Braking
The G22 4 Series Coupe features a sophisticated chassis design aimed at maximizing handling and ride comfort. The front suspension utilizes a spring strut design with a transverse stabilizer bar, while the rear suspension employs an independent multi-link setup, also with a stabilizer bar. The M440i benefits from stiffer springs and dampers compared to the standard 4 Series models, resulting in reduced body roll and improved responsiveness. The braking system consists of ventilated discs at all four corners, providing ample stopping power. The M Sport brakes, available as an option, offer even greater stopping performance and fade resistance.
Market Reception & Comparison
The BMW M440i Coupe was generally well-received by automotive critics, who praised its performance, handling, and luxurious interior. It was often lauded as a sweet spot in the 4 Series lineup, offering a compelling alternative to both the more affordable 430i and the more expensive M4. Compared to the 430i, the M440i provided a substantial power increase and a more engaging driving experience. While the M4 offered even greater performance, the M440i provided a more comfortable and refined ride. Fuel economy was respectable for a performance coupe, with the mild hybrid system contributing to improved efficiency.
Legacy
The B58 engine powering the M440i has proven to be remarkably reliable, earning a reputation as one of BMW’s most durable powertrains. The eight-speed Steptronic transmission is also known for its longevity and smooth operation. As a result, well-maintained M440i models hold their value relatively well in the used car market. The combination of performance, luxury, and technology makes the G22 M440i a desirable choice for buyers seeking a sophisticated and engaging grand touring coupe. Its blend of modern technology and proven mechanicals ensures it will remain a relevant and enjoyable vehicle for years to come.
