BMW M440i Convertible Engine: Power, Precision, and Performance in Open Road

The BMW M440i convertible engine stands as a pinnacle of modern performance, merging powerful engineering with the freedom of a convertible roof. Designed for enthusiasts who demand both speed and sophistication, this engine delivers a thrilling driving experience where precision meets power.

At the heart of the BMW M440i convertible lies a high-revving, inline-six engine tuned for dynamic responsiveness. With advanced variable valve timing and direct fuel injection, it delivers seamless power delivery from 2,000 to 4,500 RPM, offering exhilarating acceleration and a rich, engaging sound. The engine’s lightweight construction and balanced chassis integration ensure agile handling, making every turn precise and confident. Combined with the convertible’s open-air canopy, drivers enjoy a unique synergy of performance and freedom, transforming every journey into an immersive experience.

The M440i convertible’s engine exemplifies BMW’s commitment to innovation. Its twin-scroll turbocharger enhances turbo efficiency, reducing lag and boosting torque delivery. Paired with a nine-speed automatic transmission, the powertrain ensures smooth transitions across driving conditions—from spirited accelerations on winding roads to confident cruising at highway speeds. The engine’s integration with the vehicle’s adaptive suspension system delivers optimal ride comfort and stability, ensuring the M440i convertible remains a benchmark in premium performance coupes.

Beyond raw power, the M440i convertible delivers a seamless blend of luxury and performance. The engine’s quiet operation at cruising speeds enhances cabin comfort, while the responsive throttle and precise acceleration provide constant driver engagement. Premium interior materials, intuitive infotainment, and climate control work in harmony with the engine’s performance, creating a holistic experience that appeals to discerning drivers who value both style and substance. The M440i convertible is more than a car—it’s a statement of refined driving pleasure.

The BMW M440i convertible engine redefines what a performance coupe can be—where power, precision, and open-air freedom converge. If you crave an engine that delivers exhilarating drive dynamics paired with luxury and sophistication, the M440i convertible is the ultimate choice. Experience the thrill, embrace the open road, and drive like a legend.

The BMW M440i sDrive Convertible** with classic rear-wheel drive offers typical M driving pleasure in a particularly purist way: its 288 kW (392 hp) in-line 6-cylinder petrol engine accelerates the cabriolet from 0 to 100 km/h in 5.3 seconds. The BMW M440i sDrive Coupé also features the quick 8. The 382-hp six-cylinder M440i convertible slots in above the 255-hp four-cylinder 430i model and below the forthcoming M4 convertible, which is on hiatus for 2021 but will be back next year with.

The 2026 BMW 4 Series Convertible is available in three distinct model variants. The 430i and 430i xDrive models include a 2.0-liter BMW TwinPower Turbo inline 4-cylinder gasoline engine. The M440i and M440i xDrive Convertibles have a more powerful 3.0-liter BMW M TwinPower Turbo inline 6-cylinder.

At the extreme end of performance is the BMW M4 Competition xDrive Convertible, with an inline-6. The M440i Convertible is a hefty car: some 1,890kg or around 120kg more than the hard-top. That's perhaps a touch disappointing given BMW's made big claims about the soft.

BMW 4 Series Convertible Technical data of all models. Performance, measurements, fuel consumption and further specifications at a glance. Detailed specs and features for the 2025 BMW 4 Series M440i including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.

Spending $100K on a two-door BMW? See how the M440i compares to the M4 in performance, value, and daily drivability in this in. The 2022 BMW M440i Convertible is a machine that knows how to strut its stuff. With a 3.0-liter inline-six engine that churns out 382 horsepower and 369 lb-ft of torque, this car doesn't just look good; it performs like a beast.

Owners rave about the acceleration, noting that it can go from 0 to 60 mph in just about 4.5 seconds. How about the latest BMW M440i Convertible? It fills a niche long served by the 3 and 4 Series convertibles that came before it: comfortable, sportier than a Benz, more than adequate performance, top goes down. The current 4 Series convertible line starts with the 430i Convertible: $59,500 for 255 horsepower and a zero.

Our expert review of the 2025 BMW M440i Convertible has everything you need to know. Read driving impressions, browse photos, compare specs and see where rivals rank before you buy.