The BMW 4 Series Coupe (G22) M440i xDrive Steptronic, 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, 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 grand tourer experience. The M440i xDrive was primarily marketed towards enthusiasts desiring a sophisticated and capable all-weather performance car.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22) |
| Type | M440i (382 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 |
| Fuel consumption (urban) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg) |
| Fuel consumption (extra urban) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg) |
| Fuel consumption (combined) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg) |
| 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 | 210 km/h (130.49 mph) – Electronically limited |
| Weight-to-power ratio | 4.7 kg/Hp, 211.8 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 277.2 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 |
| Engine Power | 382 Hp @ 5800-6500 rpm |
| Engine Torque | 500 Nm @ 1800-5000 rpm (368.78 lb.-ft. @ 1800-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30O1 |
| 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) |
| Kerb Weight | 1804 kg (3977.14 lbs.) |
| Max. weight | 2245 kg (4949.38 lbs.) |
| Max load | 441 kg (972.24 lbs.) |
| Trunk (boot) space (minimum) | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Length | 4775 mm (187.99 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 | 1582 mm (62.28 in.) |
| Rear track | 1593 mm (62.72 in.) |
| Front overhang | 863 mm (33.98 in.) |
| Rear overhang | 1061 mm (41.77 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | 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; 225/40 R19 |
| Tires size (Rear) | 225/45 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size (Front) | 7.5J x 18; 8J x 19 |
| Wheel rims size (Rear) | 7.5J x 18; 8J x 19; 8.5J x 19 |
INTRODUCTION
The BMW 4 Series Coupe (G22) M440i xDrive Steptronic, launched in 2020, is a performance-oriented variant of the G22 generation 4 Series. Built on the Cluster Architecture (CLAR) platform, it represents a significant evolution in BMW’s coupe design and engineering. The M440i xDrive aimed to deliver a compelling combination of luxury, performance, and all-weather capability, appealing to buyers who desired a sporty coupe without sacrificing practicality. It was produced until January 2024, being superseded by updated models.
Powertrain & Engine Architecture
At the heart of the M440i xDrive lies the B58B30O1 3.0-liter inline-six engine. This engine is a cornerstone of BMW’s modern powertrain lineup, 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 performance across the engine’s operating range. The “M40i” designation signifies the inclusion of a 48V mild-hybrid system, adding an electric motor that provides a power assist during acceleration and enables smoother start-stop operation. This system contributes approximately 11 horsepower and 25 Nm (18.44 lb-ft) of torque. The engine is paired with BMW’s eight-speed Steptronic automatic transmission, renowned for its quick and precise shifts. The transmission is specifically tuned for the M440i to provide more aggressive shift points and enhanced responsiveness.
Driving Characteristics
The M440i xDrive delivers a refined yet engaging driving experience. The 382 hp and 500 Nm (368.78 lb-ft) of torque provide brisk acceleration, with 0-60 mph times consistently around 4.3 seconds. The mild-hybrid system effectively fills in torque gaps during acceleration, resulting in a seamless power delivery. The xDrive all-wheel-drive system provides excellent traction in various conditions, enhancing stability and confidence. Compared to the 430i models, the M440i offers a noticeably more potent and responsive driving experience. While not as track-focused as the full M4, the M440i provides ample power for spirited driving on public roads. The Steptronic transmission offers both automatic and manual shift modes, allowing drivers to tailor the driving experience to their preferences. The gear ratios are optimized for both acceleration and highway cruising.
Equipment & Trim Levels
The M440i xDrive came standard with a comprehensive suite 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 cosmetic enhancements. Interior trim options ranged from aluminum to wood, allowing buyers to personalize the cabin to their taste. The M440i also featured M-specific styling cues, such as a sport steering wheel, M Sport brakes, and unique exterior accents.
Chassis & Braking
The G22 4 Series M440i xDrive features a sophisticated chassis designed to balance comfort and handling. 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. This configuration provides excellent wheel control and minimizes body roll during cornering. The M440i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is further enhanced by ABS (Anti-lock braking system) and electronic brake-force distribution. The xDrive all-wheel-drive system intelligently distributes torque between the front and rear axles, optimizing traction and stability.
Market Reception & Comparison
The BMW 4 Series Coupe (G22) M440i xDrive was generally well-received by automotive critics. It was praised for its powerful engine, refined handling, and luxurious interior. Some criticism was directed towards the controversial exterior styling, particularly the large kidney grille. Compared to other trims in the 4 Series lineup, the M440i offered a significant performance advantage. Fuel economy was comparable to the 430i, despite the increased power output, thanks to the efficiency of the mild-hybrid system. Against competitors like the Audi S5 Coupe and Mercedes-Benz C43 AMG Coupe, the M440i xDrive held its own, offering a compelling blend of performance, luxury, and technology.
Legacy
The B58 engine powering the M440i xDrive has proven to be remarkably reliable, and well-maintained examples are expected to provide years of trouble-free service. The mild-hybrid system has also demonstrated good long-term durability. On the used car market, the M440i xDrive commands a premium over the lower-trim 4 Series models. Its combination of performance, luxury, and all-weather capability makes it a desirable choice for buyers seeking a sporty and sophisticated coupe. The G22 M440i xDrive represents a high point in BMW’s modern coupe development, offering a compelling driving experience that continues to appeal to enthusiasts today.
