2024 BMW 4 Series Coupe (G22 LCI facelift ) M440i (386 Hp) Mild Hybrid Steptronic

The BMW 4 Series Coupe (G22 LCI), specifically the M440i variant introduced with the 2024 facelift, represents a significant evolution in BMW’s compact executive coupe lineup. Production began in March 2024, building upon the foundation of the G22 generation launched in 2020. This M440i model occupies the performance-oriented, near-top position within the 4 Series Coupe range, slotting below the ultra-high-performance M4. It distinguishes itself through a combination of a potent inline-six engine, mild hybrid technology, and a focus on refined driving dynamics. The LCI (Life Cycle Impulse) facelift brought updated styling, interior enhancements, and further refinement to the M440i’s already compelling package.

Technical Specifications

Brand BMW
Model 4 Series
Generation 4 Series Coupe (G22 LCI, facelift 2024)
Type (Engine) M440i (386 Hp) Mild Hybrid Steptronic
Start of production March, 2024
Powertrain Architecture MHEV (Mild Hybrid Electric Vehicle)
Body type Coupe
Seats 4
Doors 2
Fuel consumption (urban) 8.7 l/100 km (27 US mpg)
Fuel consumption (extra urban) 6.9 l/100 km (34.1 US mpg)
Fuel consumption (combined) 7.8 l/100 km (30.2 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 4.6 kg/Hp
Weight-to-torque ratio 3.3 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 1767 kg (3895.57 lbs.)
Max. weight 2190 kg (4828.12 lbs.)
Trunk (boot) space 440 l (15.54 cu. ft.)
Fuel tank capacity 59 l (15.59 US gal)
Length 4773 mm (187.91 in.)
Width 1852 mm (72.91 in.)
Height 1387 mm (54.61 in.)
Wheelbase 2851 mm (112.24 in.)
Number of gears 8
Gearbox type Automatic transmission Steptronic

Powertrain & Engine Architecture

At the heart of the 2024 BMW M440i Coupe lies the B58B30M2 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 addition of a 48V mild hybrid system enhances efficiency and provides a small power boost. This system comprises a 48V starter-generator that assists the engine during acceleration and allows for extended coasting with the engine off. The engine produces 375 horsepower, with the mild hybrid system adding another 11 horsepower for a combined system output of 386 horsepower. Torque figures peak at 398.28 lb-ft, available from 1900-4800 rpm. Power is delivered to the rear wheels via an eight-speed Steptronic automatic transmission, renowned for its quick and seamless shifts.

Driving Characteristics

The M440i Coupe delivers a compelling blend of performance and comfort. The 4.6-second 0-60 mph acceleration time is indicative of its capabilities, while the rear-wheel-drive configuration provides a traditional BMW driving experience. The Steptronic transmission is well-tuned to the engine’s characteristics, offering both automatic convenience and manual control via paddle shifters. Compared to the base 4 Series models, the M440i offers significantly more power and a more engaging driving experience. While not as track-focused as the M4, it provides ample performance for spirited driving on public roads. The mild hybrid system contributes to improved fuel economy and a smoother start-stop experience. The gear ratios are optimized for both acceleration and highway cruising, providing a comfortable and refined ride.

Equipment & Trim Levels

The M440i Coupe comes standard with a comprehensive suite of features, including BMW’s iDrive infotainment system with a large touchscreen display, premium upholstery, and a host of driver-assistance technologies. Standard interior features typically include leatherette upholstery, power-adjustable front seats, and a premium sound system. Optional extras include upgraded leather upholstery, a head-up display, a panoramic sunroof, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. The LCI facelift brought updated interior trim options and a redesigned center console.

Chassis & Braking

The M440i Coupe features a sophisticated chassis designed to deliver a balance of comfort and handling. The front suspension utilizes spring struts with a transverse stabilizer, while the rear suspension employs an independent multi-link setup, also with a stabilizer bar. This configuration provides excellent wheel control and minimizes body roll. The braking system consists of ventilated discs at all four corners, providing ample stopping power. ABS (Anti-lock Braking System) and electronic stability control are standard features. The steering system is an electric power steering rack and pinion, offering precise and responsive steering feel.

Market Reception & Comparison

The BMW M440i Coupe has been well-received by automotive critics, praised for its powerful engine, refined driving dynamics, and luxurious interior. It consistently ranks highly in comparisons against its rivals, such as the Audi S5 Coupe and Mercedes-Benz C 43 AMG Coupe. Fuel economy is respectable for a performance coupe, with combined figures around 30.2 US mpg. Reliability has generally been good, although some owners have reported minor issues with the infotainment system. Compared to the higher-performance M4, the M440i offers a more comfortable and practical driving experience, making it a compelling choice for those who prioritize everyday usability.

Legacy

The B58 engine, found in the M440i, has established a reputation for reliability and longevity. With proper maintenance, this powertrain is expected to provide years of trouble-free service. On the used car market, the G22 M440i is expected to hold its value well, due to its desirable combination of performance, luxury, and BMW’s brand reputation. The mild hybrid technology introduced with the LCI facelift is likely to become increasingly common in future BMW models, representing a step towards greater efficiency and sustainability.

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