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The refreshed U.S.-market 2025 BMW 4 Series Gran Coupe adds 48-volt mild-hybrid assistance to both the 430i and M440i, along with revised exterior details and an updated digital cabin. BMW rates the 430i at 255 hp and the M440i at 386 hp of total system output; the company estimates the M440i will reach 60 mph in 4.7 seconds, or 4.3 seconds with xDrive. Those are manufacturer figures, not independent test results.
What changed for 2025?
BMW announced the updated 4 Series Gran Coupe on April 24, 2024, alongside the i4. The company said production would begin in July 2024 and the worldwide market launch would start that month. The refresh brings revised exterior design details, new paint and wheel choices, cabin trim and steering-wheel changes, and iDrive with QuickSelect on BMW Operating System 8.5. These are details from BMW’s launch announcement, not independent observations. BMW Group PressClub USA, April 24, 2024.
The headline powertrain change is 48V mild-hybrid technology in both U.S. versions described in BMW’s launch release: the four-cylinder 430i and the six-cylinder M440i. Mild-hybrid assistance supplements their combustion engines; BMW does not describe either Gran Coupe as a plug-in hybrid or an all-electric vehicle.
430i vs. M440i: engine and performance figures
The 430i and M440i differ in engine configuration and BMW-rated output. The M440i’s published acceleration estimates are also distinct from independently measured results.
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| Model | Engine and mild-hybrid system | BMW-rated output | BMW-estimated 0–60 mph |
|---|---|---|---|
| 430i Gran Coupe | 2.0-liter inline-four with 48V mild-hybrid technology | 255 hp at 4,700–6,500 rpm; 295 lb-ft at 1,600–4,500 rpm | Not stated in the U.S. launch release |
| M440i Gran Coupe | 3.0-liter inline-six with 48V mild-hybrid technology; starter-generator can provide an 11 hp boost | 386 hp total system output at 5,200–6,250 rpm; 398 lb-ft at 1,900–4,800 rpm | 4.7 seconds |
All output and acceleration figures in the table are BMW’s U.S. 2025 launch specifications or estimates, published in 2024; they are not independent measurements. BMW describes the 430i engine as using Miller-cycle combustion and cites revisions to its intake ports, combustion chambers, camshaft control, injection, ignition, and exhaust-gas routing. For the M440i, BMW says the starter-generator’s 11 hp boost contributes to the 386 hp total system figure.
M440i vs. M440i xDrive
BMW’s launch release gives separate acceleration estimates for the rear-drive M440i and its xDrive version. It does not list a different engine or output figure for xDrive in the cited U.S. release.
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| Version | BMW-rated output | BMW-estimated 0–60 mph | Top speed |
|---|---|---|---|
| M440i Gran Coupe | 386 hp system output; 398 lb-ft | 4.7 seconds | Electronically limited to 155 mph |
| M440i xDrive Gran Coupe | 386 hp system output; 398 lb-ft | 4.3 seconds | Electronically limited to 155 mph |
These are BMW specifications and estimates for the 2025 U.S. launch, not independently tested figures. BMW’s separate global technical-data page is labeled valid as of July 2024 and says its consumption and emissions figures refer to vehicles for the German market; those figures should not be applied to U.S. models. BMW 4 Series Gran Coupe technical data.
What is new inside?
The cabin update centers on the Curved Display and iDrive with QuickSelect, running BMW Operating System 8.5. BMW says climate controls and seat- and steering-wheel-heating functions can be operated on the touchscreen or through the Intelligent Personal Assistant. The company also lists revised air-vent adjustment controls, new trim finishes, and a changed steering wheel.
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BMW says sport seats in perforated Sensatec are standard, with Vernasca leather available. The launch release does not specify every upholstery or trim combination by model, so check the equipment configuration for the specific vehicle being considered.
Lighting and equipment depend on model or package
Laserlight taillights are fitted to vehicles equipped with Adaptive Full LED Headlights. BMW identifies those headlights as standard on M440i models and optional on other models through the Shadowline Package. The Laserlight taillight feature therefore should not be read as standard across every 4 Series Gran Coupe.
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- 【What You Get】1pcs waterproof car cover for 2013-2026 BMW M4/4 Series Sedan Coupe+1 storage bag+1 installation instruction. Tips: Refer to the white tag labeled "Front" to arrange the installation of the cover. When the cover is not in use, you can use the storage bag to store it in the trunk of the car. If you have any questions about the size and the installation, please contact us at anytime.
BMW also announced new wheel choices, but the cited U.S. release does not establish a complete model-by-model wheel availability list. Confirm the package and equipment details for a specific vehicle rather than assuming every pictured or announced choice is standard.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What this first look can—and cannot—establish
BMW’s launch materials establish the announced changes, manufacturer-rated power figures, and BMW’s acceleration estimates. They do not establish independent real-world performance, fuel economy for U.S. models, ride or handling characteristics, or how the updated cabin works in everyday use. Current U.S. pricing and dealer availability are also not established here. A buyer comparing the two trims can use the engine, output, estimated acceleration, and equipment distinctions above, but should verify the exact configuration and current terms with a BMW dealer.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.




