The BMW 4 Series Coupe (G22) M440i, produced from 2020 through January 2024, represents a compelling blend of performance and efficiency within the broader 4 Series lineup. Positioned as a mid-to-high range offering, the M440i distinguishes itself through its potent turbocharged inline-six engine, mild hybrid technology, and standard xDrive all-wheel drive. It serves as a sportier alternative to the 430i, bridging the gap to the full-fledged M4 performance model. The G22 generation marked a significant departure in styling for the 4 Series, featuring a prominent kidney grille that sparked considerable debate, but also represented a more dynamic and driver-focused coupe than its predecessor.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22) |
| Type | M440i (374 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | 2020 |
| 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) |
| CO2 emissions (WLTP) | 170-186 g/km |
| Fuel consumption (urban – NEDC) | 8.6-9 l/100 km (27.4 – 26.1 US mpg) |
| Fuel consumption (extra urban – NEDC) | 5.7-6 l/100 km (41.3 – 39.2 US mpg) |
| Fuel consumption (combined – NEDC) | 6.8-7.1 l/100 km (34.6 – 33.1 US mpg) |
| CO2 emissions (NEDC) | 155-163 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.5 sec |
| Acceleration 0 – 62 mph | 4.5 sec |
| Acceleration 0 – 60 mph | 4.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 4.7 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.) |
| Power | 374 Hp @ 5500-6500 rpm |
| Torque | 500 Nm @ 1900-5000 rpm (368.78 lb.-ft. @ 1900-5000 rpm) |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30B |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Engine oil capacity | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Coolant capacity | 10.5 l (11.1 US qt | 9.24 UK qt) |
| Kerb Weight | 1740 kg (3836.04 lbs.) |
| Max. weight | 2245 kg (4949.38 lbs.) |
| Max load | 505 kg (1113.33 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Length | 4770 mm (187.8 in.) |
| Width | 1852 mm (72.91 in.) |
| Height | 1393 mm (54.84 in.) |
| Wheelbase | 2851 mm (112.24 in.) |
| Front track | 1575 mm (62.01 in.) |
| Rear track | 1611 mm (63.43 in.) |
| Ride height (ground clearance) | 129 mm (5.08 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 12 m (39.37 ft.) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission Steptronic |
Powertrain & Engine Architecture
At the heart of the M440i lies the 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 responsiveness. The B58 utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and lift system. The mild hybrid system, incorporating a 48V starter-generator, adds a small power boost (11 hp) and enables features like extended start-stop operation and coasting with engine shut-off, improving fuel efficiency. The engine is longitudinally mounted, driving all four wheels through BMW’s xDrive all-wheel-drive system. The xDrive system is typically rear-biased, enhancing the car’s dynamic handling characteristics. The Steptronic 8-speed automatic transmission is standard, offering smooth and quick shifts, and features paddle shifters for manual control.
Driving Characteristics
The M440i delivers a refined yet engaging driving experience. The 374 hp and 368 lb-ft of torque provide brisk acceleration, with 0-60 mph times consistently around 4.3-4.5 seconds. The mild hybrid system contributes to seamless power delivery, minimizing turbo lag. The 8-speed automatic transmission is well-tuned, providing quick and precise shifts in both automatic and manual modes. Compared to the 430i, the M440i offers a noticeable increase in performance, while remaining more approachable than the track-focused M4. The xDrive system provides excellent traction in all weather conditions, enhancing stability and confidence. The suspension is tuned for a balance between comfort and handling, offering a sporty yet compliant ride.
Equipment & Trim Levels
The M440i typically came well-equipped as standard. Key features included leather upholstery, power-adjustable front seats with memory function, a premium sound system, a large infotainment display with iDrive controller, and a comprehensive suite of driver-assistance systems such as lane departure warning, forward collision warning, and automatic emergency braking. Optional extras included adaptive suspension, upgraded leather options, a head-up display, and a parking assistant package. Interior trim options ranged from aluminum to wood veneers, allowing for personalization. The standard dashboard configuration featured a digital instrument cluster and a central infotainment screen, seamlessly integrated into the cabin design.
Chassis & Braking
The G22 4 Series utilizes a sophisticated chassis design. The front suspension employs a spring strut setup with a transverse stabilizer bar, while the rear features an independent multi-link spring suspension, also with a stabilizer bar. This configuration provides a good balance of ride comfort and handling precision. The M440i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is augmented by ABS, dynamic stability control, and corner brake control. The chassis is designed to be relatively lightweight, contributing to the car’s agility.
Market Reception & Comparison
The M440i was generally well-received by automotive critics. It was praised for its powerful engine, refined driving dynamics, and luxurious interior. Some criticism was directed at the controversial exterior styling, particularly the large kidney grille. Compared to the 430i, the M440i offered a significant performance upgrade, justifying the higher price tag for enthusiasts. Fuel economy was respectable for a performance coupe, with combined figures ranging from 29-33 mpg. Reliability has been generally good, although some owners have reported minor issues with the infotainment system.
Legacy
The BMW 4 Series Coupe (G22) M440i represents a modern interpretation of the classic BMW sports coupe. Its combination of performance, luxury, and technology has made it a popular choice among enthusiasts. The B58 engine is widely regarded as one of BMW’s best, and its robust design suggests long-term reliability. On the used car market, the M440i holds its value well, reflecting its desirability and reputation. As a mild hybrid, it also represents a step towards greater fuel efficiency and reduced emissions, aligning with evolving automotive trends. The G22 M440i is likely to be remembered as a well-rounded and enjoyable sports coupe that successfully blended performance with everyday usability.
