The BMW 4 Series family shares a powertrain lineup and design identity, but each body style serves a different use case. Choosing between them is not a question of which is better overall; it is a question of which configuration suits the way you use a vehicle.
The BMW 430i Coupe uses a two-door, fixed-roof body with a sweeping roofline, kidney grille framed in high-gloss black, and vertical LED headlights. At 187.9 inches long and 54.6 inches tall, it establishes the two-door shape of the lineup. The Coupe body style also includes the BMW M4 Coupe, BMW M4 Competition Coupe, and BMW M4 Competition xDrive Coupe.
The BMW 430i Convertible uses a fabric soft top that raises or lowers in approximately 10 seconds at vehicle speeds up to 30 mph. The fabric soft top uses reinforced panel construction designed to support acoustic and thermal insulation. The Convertible body style also includes the BMW M4 Competition xDrive Convertible.
The BMW 430i Gran Coupe extends the body to 188.5 inches long and 56.8 inches tall. Its four-door configuration provides direct rear-seat access while retaining a sloping roofline.
The Coupe uses a two-door, fixed-roof body with a roofline that slopes rearward from the passenger compartment.
Rear-seat access requires moving the front seat forward, unlike the four-door Gran Coupe.
Cargo capacity reaches 15.5 cu ft with the rear seats folded.
The fabric soft top is the defining functional difference of the Convertible. Its reinforced panel construction is designed to support acoustic and thermal insulation when the roof is closed.
A standard wind deflector helps manage airflow when the top is lowered.
With the top raised, the BMW 430i Convertible provides 13.6 cu ft of cargo space. With the top retracted, cargo capacity is 10.6 cu ft to accommodate the folded roof mechanism.
The BMW 430i xDrive Convertible adds BMW xDrive all-wheel drive for buyers who prefer an AWD configuration.
The Gran Coupe uses a four-door architecture to provide direct rear-seat access through two rear doors.
At 56.8 inches tall compared with 54.6 inches for the Coupe, the Gran Coupe also presents a different overall body configuration while retaining its sloping roofline.
A through-loading system extends cargo flexibility.
For drivers who regularly carry rear passengers, the four-door layout provides a different access arrangement from the two-door Coupe and Convertible.
The 2027 BMW 4 Series lineup spans multiple models, and not every body style is available in every variant.
| Body Style | Model | Drivetrain | Horsepower | 0–60 MPH |
|---|---|---|---|---|
| Coupe | BMW 430i Coupe | RWD | 255 hp | 5.6 sec |
| Coupe | BMW 430i xDrive Coupe | AWD | 255 hp | 5.4 sec |
| Coupe | BMW M440i Coupe | RWD | 386 hp | 4.6 sec |
| Coupe | BMW M440i xDrive Coupe | AWD | 386 hp | 4.2 sec |
| Coupe | BMW M4 Coupe | RWD | 473 hp | 4.1 sec |
| Coupe | BMW M4 Competition Coupe | RWD | 503 hp | 3.8 sec |
| Coupe | BMW M4 Competition xDrive Coupe | AWD | 523 hp | 3.4 sec |
| Convertible | BMW 430i Convertible | RWD | 255 hp | 6.0 sec |
| Convertible | BMW 430i xDrive Convertible | AWD | 255 hp | 5.9 sec |
| Convertible | BMW M440i Convertible | RWD | 386 hp | 5.0 sec |
| Convertible | BMW M440i xDrive Convertible | AWD | 386 hp | 4.6 sec |
| Convertible | BMW M4 Competition xDrive Convertible | AWD | 523 hp | 3.6 sec |
| Gran Coupe | BMW 430i Gran Coupe | RWD | 255 hp | 5.8 sec |
| Gran Coupe | BMW 430i xDrive Gran Coupe | AWD | 255 hp | 5.7 sec |
| Gran Coupe | BMW M440i Gran Coupe | RWD | 386 hp | 4.6 sec |
| Gran Coupe | BMW M440i xDrive Gran Coupe | AWD | 386 hp | 4.3 sec |
Choose the Coupe if you prefer a two-door fixed-roof configuration and generally carry rear passengers less frequently.
The Coupe body style ranges from the 255-hp BMW 430i Coupe to the 523-hp BMW M4 Competition xDrive Coupe.
Choose the Convertible if open-air driving is an important part of your BMW 4 Series ownership plans.
The soft top can raise or lower in approximately 10 seconds and can be operated at vehicle speeds up to 30 mph.
xDrive configurations are available for buyers who prefer all-wheel drive.
The Convertible retains the same BMW 430i and BMW M440i powertrain choices described here, while the BMW M4 Competition xDrive Convertible adds the 523-hp BMW M powertrain.
Choose the Gran Coupe if you regularly carry rear passengers or prefer four-door access.
The four-door configuration provides direct rear-seat access and a different cargo/passenger layout from the two-door body styles while retaining a sloping roofline.
All three body styles include BMW Operating System 8.5 with BMW Intelligent Personal Assistant, wireless Apple CarPlay and Android Auto, wireless device charging, ambient lighting, and My BMW App functionality.
Remote Engine Start is available on BMW 430i models and standard on BMW M440i models across all three body styles. Connected and remote features may depend on compatible devices, account setup, data connectivity, and applicable service availability.
The Coupe provides the two-door fixed-roof configuration. The Convertible adds the retractable fabric soft top. The Gran Coupe uses four doors and a liftgate-style rear opening while retaining a sloping roofline. Across the lineup, BMW 430i and BMW M440i powertrains are available in each of the three body styles, while BMW M4 configurations are offered as Coupe and Convertible models. The BMW 430i Coupe is EPA-rated at 28 mpg city and 36 mpg highway.
Browse current 2027 BMW 4 Series inventory at BMW of Milwaukee North to see available body styles and configurations. BMW of Milwaukee North serves drivers throughout the North Shore, Ozaukee County, and Washington County, including Mequon, Fox Point, Cedarburg, Germantown, Shorewood, Whitefish Bay, Brown Deer, Grafton, Menomonee Falls, and Port Washington. The BMW of Milwaukee North team can review available Coupe, Convertible, and Gran Coupe configurations and arrange a test drive for an available vehicle.
The 2027 BMW 4 Series is available as a Coupe with a two-door fixed-roof body, a Convertible with a two-door fabric soft top, and a Gran Coupe with four doors and a sloping roofline. Each shares the same base technology platform, while BMW M4 configurations are available in Coupe and Convertible body styles.
The BMW 4 Series Coupe is a two-door fixed-roof vehicle. The Gran Coupe adds two rear doors and is listed at 188.5 inches long and 56.8 inches tall, compared with 187.9 inches long and 54.6 inches tall for the Coupe. The Gran Coupe also provides direct rear-seat access through its rear doors.
The BMW 430i xDrive Convertible and BMW M440i xDrive Convertible offer BMW xDrive all-wheel drive. The BMW M4 Competition xDrive Convertible also uses an all-wheel-drive configuration. The fabric soft top uses reinforced panel construction designed to support acoustic and thermal insulation when closed.
The fabric soft top raises or lowers in approximately 10 seconds and can be operated at vehicle speeds up to 30 mph.
The 2.0L BMW TwinPower Turbo inline four-cylinder used in BMW 430i models and the 3.0L BMW M TwinPower Turbo inline six-cylinder used in BMW M440i models are available across all three body styles. BMW xDrive all-wheel drive is also available across Coupe, Convertible, and Gran Coupe configurations. BMW M4 models are offered in Coupe and Convertible body styles, with output ranging from 473 hp in the BMW M4 Coupe to 523 hp in BMW M4 Competition xDrive configurations.
The Coupe and Gran Coupe are listed at up to 15.5 cu ft of cargo capacity in the configurations described here. The Convertible provides 13.6 cu ft with the soft top raised and 10.6 cu ft with the top retracted, as the folded roof occupies part of the cargo area.
The BMW M4 Competition xDrive Coupe has the lowest listed 0-60-mph time among the configurations shown here at 3.4 seconds. The BMW M4 Competition xDrive Convertible is listed at 3.6 seconds, while the BMW M440i xDrive Gran Coupe is listed at 4.3 seconds.
Browse online to check current BMW 4 Series body-style availability at BMW of Milwaukee North or schedule a test drive for an available vehicle.
