The BMW 4 Series Coupe (G22) M440i, produced from 2020 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, the M440i distinguishes itself through its potent turbocharged inline-six engine, mild-hybrid technology, and sophisticated Steptronic automatic transmission. This model aimed to deliver a more engaging driving experience than the 430i while offering a slightly more accessible price point than the full-fledged M4. It primarily targeted enthusiasts seeking a sporty coupe with everyday usability and a touch of luxury.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22) |
| Type | M440i (382 Hp) Mild Hybrid Steptronic |
| Start of production | 2020 |
| End of production | January, 2024 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 9.8 l/100 km (24 US mpg) |
| Fuel consumption (extra urban) | 7.4 l/100 km (31.8 US mpg) |
| Fuel consumption (combined) | 8.7 l/100 km (27 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 | 3.5 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 | 382 Hp @ 5800-6500 rpm |
| Torque | 500 Nm @ 1800-5000 rpm (368.78 lb.-ft. @ 1800-5000 rpm) |
| Engine Model/Code | B58B30O1 |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1750 kg (3858.09 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 | 12.98 UK gal) |
| Length | 4775 mm (187.99 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 M440i lies the B58B30O1 3.0-liter inline-six engine. This engine is a member of BMW’s modular engine family, known for its smooth power delivery and robust construction. It 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 performance across a wide range of engine speeds. The mild-hybrid system, incorporating a 48V lithium-ion battery and an integrated starter generator, provides a power boost during acceleration and enables smoother start-stop operation. The Steptronic 8-speed automatic transmission is specifically tuned for the M440i, offering quick and precise shifts. It features launch control and paddle shifters for a more engaging driving experience.
Driving Characteristics
The M440i delivers a noticeably more spirited driving experience compared to the 430i. The 382 horsepower and 368 lb-ft of torque provide strong acceleration, with a 0-60 mph time of just 4.6 seconds. The 8-speed Steptronic transmission is well-matched to the engine’s powerband, providing seamless gear changes. The mild-hybrid system contributes to a responsive feel, particularly during initial acceleration. While the M4 offers a more track-focused experience, the M440i strikes a balance between performance and comfort, making it a suitable daily driver. The rear-wheel-drive configuration contributes to a balanced chassis and engaging handling characteristics.
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.
Chassis & Braking
The M440i features a sophisticated chassis designed to deliver both comfort and handling precision. 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. The M440i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The steering system is an electric power-assisted rack and pinion, offering precise and responsive steering feel. The standard tire size is 225/45 R18 front and 225/45 R18 rear, with larger 19-inch options available.
Market Reception & Comparison
The M440i was generally well-received by automotive critics, who praised its powerful engine, refined handling, and comfortable interior. It was often compared to rivals such as the Audi S5 Coupe and the Mercedes-Benz C43 AMG Coupe. The M440i offered a compelling value proposition, providing a significant performance upgrade over the 430i without the higher price tag of the M4. Fuel economy was respectable for a performance coupe, with combined EPA ratings of around 27 mpg. Reliability reports have been generally positive, although some owners have reported minor issues with the infotainment system.
Legacy
The BMW 4 Series Coupe (G22) M440i has established itself as a desirable used car option. The B58 engine is known for its durability and relatively low maintenance costs. The mild-hybrid system has proven to be reliable, and the Steptronic transmission is generally well-regarded. As a result, well-maintained M440i models continue to command strong resale values. The combination of performance, luxury, and technology makes it a popular choice for enthusiasts seeking a sporty and refined coupe.
