The single most significant update to the 2026 BMW 4 Series is the addition of a 48V mild hybrid system across the lineup. Both the 430i and the M440i now pair their TwinPower Turbo engines with integrated mild-hybrid assistance, giving each powertrain a more responsive feel off the line and contributing to the 430i’s 29 combined MPG rating.
BMW Operating System 8.5 is also new for this model year, replacing the prior OS and bringing an updated interface to the BMW Curved Display. The Intelligent Personal Assistant receives updated voice-command responsiveness, and wireless Apple CarPlay and Android Auto are now standard across all models rather than optional.
Four new exterior color options, Canberra Beige, Black, Tacora Red, and Cognac, refresh the palette for 2026.
The 2026 BMW 4 Series is offered in three body styles (Coupe, Gran Coupe, and Convertible) and two core powertrain models (430i and M440i), with rear-wheel drive standard and xDrive all-wheel drive available on each.
The entry model for the 4 Series Coupe. It carries the 2.0L TwinPower Turbo four-cylinder with 48V mild hybrid, 255 hp, and 295 lb-ft of torque. Wireless Apple CarPlay and Android Auto, BMW Operating System 8.5 with the Curved Display, front and rear parking sensors with low-speed automatic braking, and a 360-degree SurroundView camera system are all standard. Adds xDrive all-wheel drive to the 430i Coupe configuration. A meaningful upgrade for Glendale drivers who want year-round confidence on Wisconsin roads without stepping up to the M440i powertrain.
Steps up to the 3.0L M TwinPower Turbo inline six-cylinder with 48V mild hybrid. The inline-six delivers a distinct character and sound signature that positions it above the 430i for performance-focused buyers. Combines the inline-six powertrain with xDrive all-wheel drive, making it the most capable non-M Coupe configuration.
The Gran Coupe adds a four-door body to the 4 Series lineup, giving buyers the low roofline and coupe proportions of the two-door alongside rear doors for easier access. The 430i Gran Coupe carries the same 2.0L TwinPower Turbo four-cylinder with 48V mild hybrid, 255 hp, and 295 lb-ft of torque. The xDrive variant adds all-wheel drive for drivers who want added traction in Wisconsin winters without sacrificing the coupe silhouette.
Steps the Gran Coupe up to the 3.0L M TwinPower Turbo inline six-cylinder with 48V mild hybrid. The M440i xDrive Gran Coupe sits at the top of the Gran Coupe range, pairing the six-cylinder powertrain with all-wheel drive in the four-door body style.
The same powertrain choices as the Coupe counterparts, now in open-top form. The fabric roof and a seating capacity of four make the Convertible a genuine four-season option for buyers who want an open-air driving position.
The top of the 4 Series Convertible range. The M440i xDrive Convertible sits at the highest specification point in the non-M4 lineup, pairing the six-cylinder mild hybrid with all-wheel drive and open-top motoring.
Note: the BMW M4 Coupe and BMW M4 Convertible are separate M models with their own performance specifications and are not covered on this page.
The 430i uses a 2.0L TwinPower Turbo inline four-cylinder paired with a 48V mild hybrid system. Output is 255 hp and 295 lb-ft of torque, routed through an 8-speed automatic transmission. Rear-wheel drive is standard; xDrive is available.
EPA fuel economy for the 430i stands at 25 city / 34 highway / 29 combined MPG. EPA fuel economy ratings for the 2026 BMW 430i
The M440i replaces the four-cylinder with a 3.0L M TwinPower Turbo inline six-cylinder, also running a 48V mild hybrid setup and the same 8-speed automatic. The xDrive versions of both models add BMW’s intelligent all-wheel-drive system, which distributes torque front and rear based on conditions, a particularly useful feature during Wisconsin winters.
Both engines run on gasoline, with the mild-hybrid component handling energy recovery and low-speed assist rather than providing a fully electric drive mode.
The 2026 BMW 4 Series seats four across all body styles. The Coupe and Convertible maintain the 2+2 proportions of a traditional coupe layout. The Gran Coupe adds rear doors while preserving the sloping roofline, giving rear passengers a more accessible entry point than the two-door body styles. At 187.9 inches in length and 54.6 inches in height, the 4 Series maintains its low, wide stance relative to the BMW 3 Series sedan it shares its platform with.
Interior materials across the lineup match the positioning of each model. The standard model carries quality soft-touch surfaces and sport seats. Moving up through the M440i adds M-specific interior details and seating that reflect the higher-performance intent of the six-cylinder powertrain.
The Convertible models retain four-seat capacity with a fabric roof that folds to preserve a usable rear seating area, making the Convertible a practical choice for occasional rear-seat use rather than just a two-seat sports vehicle.
BMW Operating System 8.5 powers the 2026 4 Series, displayed on the BMW Curved Display that integrates the instrument cluster and infotainment screen into a single flowing unit. This setup is standard across the lineup.
Wireless Apple CarPlay and Android Auto are standard on every model. The BMW Intelligent Personal Assistant responds to voice commands for navigation, climate, and vehicle settings without requiring physical inputs.
The My BMW App with Remote Engine Start allows owners to pre-condition the vehicle before entering, a practical feature for cold Glendale mornings.
Available upgrades include:
Driving Assistant Professional, adds lane-keeping assist, adaptive cruise control with steering assist, and hands-free driving at speeds up to 40 mph on selected highways.
Parking Assistant Plus with 3D SurroundView, expands on the standard 360-degree camera with three-dimensional spatial visualization.
BMW Live Cockpit Professional, adds a head-up display and augmented video navigation that overlays directional prompts onto a live camera feed of the road ahead.
Harman Kardon surround sound system, available for buyers who want a higher-output audio setup.
AM/FM Radio with SiriusXM is standard across the lineup.
Standard safety equipment on the 2026 BMW 4 Series includes front and rear parking sensors with low-speed automatic braking, a 360-degree SurroundView camera system for parking, Child Seat Anchors (LATCH), and Bluetooth Wireless Technology.
The available Driving Assistant Professional suite adds the most substantive active safety features: lane-keeping assist, adaptive cruise control with steering assist, and hands-free capability up to 40 mph on compatible highway segments. This suite is the primary upgrade for buyers prioritizing active driver assistance.
The 4-year / 50,000-mile bumper-to-bumper warranty and matching 4-year / 50,000-mile powertrain warranty provide a consistent coverage baseline across every model in the lineup.
The 2026 BMW 4 Series is the right choice for a buyer who wants a rear-wheel-drive-biased coupe, four-door gran coupe, or convertible with a modern hybrid-assisted powertrain, updated software, and a true choice between four-cylinder and six-cylinder power. The 48V mild hybrid addition is the clearest reason to choose the 2026 model over a pre-owned or prior-year 4 Series, the system adds real-world responsiveness and efficiency gains that the non-hybrid predecessor did not offer.
Buyers coming from the prior model year will also find BMW Operating System 8.5 to be a meaningful software step forward, particularly in the voice assistant and wireless connectivity experience.
The 430i xDrive Coupe or Convertible suits the buyer who wants all-weather grip without the cost step of the M440i. The 430i xDrive Gran Coupe is the choice for the buyer who wants that same all-weather capability with rear-door access. The M440i xDrive is for the buyer who wants the most performance-oriented non-M version of the 4 Series with the security of all-wheel drive year-round, in whichever body style fits. Those in Glendale who want to compare the full range in person, including the M4 Coupe and M4 Convertible, can do so at BMW of Milwaukee North.
The 2026 BMW 4 Series lineup runs from the 430i Coupe with 48V mild hybrid efficiency to the M440i xDrive Convertible with the six-cylinder powertrain and all-wheel drive, with the Gran Coupe offering four-door practicality across both powertrain levels. Every model comes with standard wireless CarPlay, Android Auto, the BMW Curved Display, and a 360-degree SurroundView camera. BMW of Milwaukee North carries the full lineup in Glendale, WI. Browse current inventory, configure your preferred model and color, or schedule a test drive to compare the Coupe, Gran Coupe, and Convertible body styles in person.
The 2026 BMW 4 Series adds a 48V mild hybrid system to both the 430i and M440i powertrains, along with BMW Operating System 8.5 and standard wireless Apple CarPlay and Android Auto across the lineup.
The 2026 BMW 4 Series is available as a Coupe, Gran Coupe, and Convertible, each offered in 430i and M440i configurations, with rear-wheel drive or xDrive all-wheel drive. The BMW M4 Coupe and BMW M4 Convertible are separate M models with their own specifications.
The 2026 BMW 430i produces 255 hp and 295 lb-ft of torque from its 2.0L TwinPower Turbo four-cylinder with 48V mild hybrid system.
The 2026 BMW 430i is EPA-rated at 25 city / 34 highway / 29 combined MPG. M440i fuel economy figures were not available in the verified spec set for this page.
Yes. xDrive all-wheel drive is available on the 430i and M440i in all three body styles: Coupe, Gran Coupe, and Convertible. Rear-wheel drive is the standard configuration.
Standard technology includes BMW Operating System 8.5 with the BMW Curved Display, wireless Apple CarPlay and Android Auto, the BMW Intelligent Personal Assistant, My BMW App with Remote Engine Start, and a 360-degree SurroundView camera system.
The 2026 BMW 4 Series is covered by a 4-year / 50,000-mile bumper-to-bumper warranty and a 4-year / 50,000-mile powertrain warranty.
BMW of Milwaukee North carries the 2026 BMW 4 Series lineup in Glendale, WI. You can browse current inventory online or schedule a test drive to compare Coupe, Gran Coupe, and Convertible models side by side.
