4 Series Research for Northern California
2027 BMW 4 Series Specs in Northern California
Every published dimension, weight and rating for the 2027 4 Series, scoped to the exact body and drivetrain it belongs to.
Every figure on this page comes from BMW's own technical data for the 2027 4 Series, from the EPA, or from a published trim table, and each one is scoped to the exact configuration it belongs to. That matters more on this car than on most, because the 4 Series is sold in three bodies and the numbers move between them: the all-wheel-drive cars sit two tenths of an inch taller than their rear-drive twins, and the trunk changes by three cubic feet depending on which roof you choose.
Below are the powertrain figures, the exterior and interior dimensions, wheels and tires, fuel economy, the standard equipment list, the safety hardware and the warranty terms. BMW of Napa Valley in Fairfield can put a tape measure on the actual car if a dimension is the deciding factor.
Headline Specs, 2027 4 Series Coupe
- Length 187.9 in, body width 72.9 in, height 54.6 in rear-drive or 54.8 in xDrive, wheelbase 112.2 in
- Curb weight 3,677 lb (430i) to 4,019 lb (M440i xDrive)
- Trunk 15.5 cu ft; fuel tank 15.6 gal; ground clearance 5.1 in
- 255 hp / 295 lb-ft, or 386 hp / 398 lb-ft
- EPA up to 28 city / 36 highway / 31 combined
2027 BMW 4 Series Engine and Powertrain Specs
| Spec | 430i / 430i xDrive | M440i / M440i xDrive |
|---|---|---|
| Engine | 2.0-liter TwinPower Turbo inline-4 | 3.0-liter M TwinPower Turbo inline-6 |
| Displacement | 1,998 cc | 2,998 cc |
| Horsepower | 255 bhp at 4,700 to 6,500 rpm | 386 bhp at 5,200 to 6,250 rpm |
| Torque | 295 lb-ft from 1,600 to 4,500 rpm | 398 lb-ft from 1,900 to 4,800 rpm |
| Transmission | 8-speed Sport Automatic | 8-speed Sport Automatic |
| Drive | RWD or xDrive AWD | RWD or xDrive AWD |
| Top speed | 130 mph, electronically limited | 130 mph, electronically limited |
BMW's 386 hp figure for the M440i is 375 hp from the combustion engine plus up to 11 hp of electric drive from the 48-volt mild-hybrid system. Both engines take premium gasoline.
2027 BMW 4 Series Dimensions
| Dimension | Coupe |
|---|---|
| Length | 187.9 in |
| Width, body | 72.9 in |
| Width, including mirrors | 81.9 in |
| Height | 54.6 in rear-drive, 54.8 in xDrive |
| Wheelbase | 112.2 in |
| Ground clearance | 5.1 in minimum |
| Turning circle | 37.4 ft rear-drive, 39.4 ft xDrive |
The two width figures are the ones people get wrong. 72.9 inches is the body; 81.9 includes the mirrors, and that is the number that matters in a narrow garage on an older Fairfield street. The Gran Coupe rides on a slightly longer 112.4-inch wheelbase.
2027 BMW 4 Series Interior and Cargo
| Measurement | Figure |
|---|---|
| Front headroom | 38.0 in |
| Front legroom | 41.8 in |
| Front shoulder room | 55.1 in |
| Seating, Coupe | 4 |
| Seating, Gran Coupe | 5 |
| Trunk, Coupe | 15.5 cu ft |
| Trunk, Convertible | 13.6 cu ft roof up, 10.6 cu ft roof stowed |
| Fuel tank | 15.6 gal |
2027 BMW 4 Series Wheels and Weights
| Coupe configuration | Curb weight | Height | Turning circle |
|---|---|---|---|
| 430i | 3,677 lb | 54.6 in | 37.4 ft |
| 430i xDrive | 3,805 lb | 54.8 in | 39.4 ft |
| M440i | 3,896 lb | 54.6 in | 37.4 ft |
| M440i xDrive | 4,019 lb | 54.8 in | 39.4 ft |
Alloy wheels are standard on every trim. The M4 carries a load rating of 1,058 pounds of payload capacity.
2027 BMW 4 Series Fuel Economy
| Model | City | Highway | Combined |
|---|---|---|---|
| 430i Coupe | 28 | 36 | 31 |
| 430i xDrive Coupe | 27 | 34 | 30 |
| 430i Convertible | 27 | 35 | 30 |
| M440i Coupe | 27 | 34 | 30 |
| M440i xDrive Coupe | 26 | 33 | 29 |
| M440i xDrive Convertible | 26 | 32 | 28 |
All figures are EPA estimates and are published at fueleconomy.gov. Your mileage will vary. On the 15.6-gallon tank, the rear-drive 430i Coupe's highway rating works out to roughly 560 miles between fills, which covers the run up Interstate 80 and back with room to spare.
2027 BMW 4 Series Key Features
Standard on every trim: the curved display running Operating System 8.5 with BMW's Intelligent Personal Assistant, wireless Apple CarPlay and Android Auto, wireless device charging, ambient lighting, navigation with real-time traffic, satellite radio, in-car internet, power front seats, heated mirrors, folding rear seats and alloy wheels.
Standard on the M440i and optional on the 430i: adaptive headlights, a heated steering wheel, remote engine start, the rear spoiler and a power trunk release. Leather upholstery and a surround-view camera are optional across the range. Available packages include the Parking Assistance Package with Parking Assistant Plus and Parking View 3D, the Driving Assistant Professional Package, and a Premium Package.
2027 BMW 4 Series Safety Equipment
Every 4 Series carries BMW's standard Driving Assistant, which includes Active Blind Spot Detection, Frontal Collision Warning with City Collision Mitigation and Lane Departure Warning, plus traction and stability control and BMW's emergency and security services. The available Driving Assistant Professional Package adds Traffic Jam Assistant among other functions.
2027 BMW 4 Series Warranty
| Coverage | Term |
|---|---|
| Basic warranty | 4 years or 50,000 miles |
| BMW Ultimate Care scheduled maintenance | 3 years or 36,000 miles |
| Roadside assistance | 4 years, unlimited miles |
Every new BMW carries a basic warranty of 4 years or 50,000 miles, whichever comes first, along with BMW Ultimate Care scheduled maintenance for the first 3 years or 36,000 miles and roadside assistance for 4 years and unlimited miles. Standard Ultimate Care covers scheduled maintenance; brake pads, wiper blades and clutch replacement sit under the paid Ultimate Care+ upgrade rather than the standard plan. The full service picture is on the maintenance page.
What These 2027 BMW 4 Series Specs Mean in Practice
Three numbers do most of the work here. The 112.2-inch wheelbase inside a 187.9-inch body is why the car feels planted at speed on Interstate 80 rather than nervous. The 5.1 inches of ground clearance is what keeps the car sitting low and planted, which is the stance a sports coupe is built around and what you feel through the corners on the Silverado Trail. And the 15.5 cubic feet of trunk is genuinely more than the roofline suggests, which is the pleasant surprise most 4 Series owners report in their first month.
The weight spread also explains the character of the range. A 430i at 3,677 pounds is light enough to feel eager on 255 horsepower; an M440i xDrive at 4,019 pounds is the heaviest in the range and answers with 131 more horsepower. Neither is compromised, and they are different cars to drive. Come and drive both at BMW of Napa Valley on Auto Mall Parkway in Fairfield, convenient to Vacaville, Vallejo, Suisun City and Napa.
2027 BMW 4 Series Specs FAQ
How long is a 2027 BMW 4 Series?
187.9 inches for the coupe, on a 112.2-inch wheelbase. The body is 72.9 inches wide and 81.9 inches across the mirrors.
How much does a 2027 BMW 4 Series weigh?
From 3,677 pounds for a rear-drive 430i Coupe to 4,019 pounds for an M440i xDrive Coupe.
How big is the 2027 BMW 4 Series trunk?
15.5 cubic feet in the coupe. The convertible holds 13.6 cubic feet with the roof up and 10.6 with it stowed, because a partition has to be in place before the roof will fold.
What is the ground clearance on a 2027 BMW 4 Series?
5.1 inches at minimum, which is normal for a sports coupe and worth knowing before a steep driveway.
How big is the fuel tank on a 2027 BMW 4 Series?
15.6 gallons, and it takes premium gasoline.
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