“You have to drive it and see how it handles. Look at the styling and the inside how it looks.”
2021 BMW 4 Series: What's New, Specs & Features
Last updated August 4, 2026
The 2021 BMW 4 Series Coupe and Convertible begin an all-new second generation. The redesign brings a larger, lower body, stronger engines, newer cabin tech, more standard safety features, and a fabric roof for the Convertible.
About the 2021 BMW 4 Series
2nd generation 4 Series (G22 coupe / G23 convertible), first year
The 4 Series is BMW’s sleeker, lower four-seat two-door alternative to the 3 Series sedan. BMW presents it as a style-forward luxury coupe and convertible that still puts driving feel first, with strong turbo engines, a driver-focused cabin, and either rear-wheel-drive balance or xDrive traction. What sets it apart is that it mixes everyday comfort and modern tech with more dramatic design and a more special two-door feel than a typical compact luxury sedan.
The 430i is the everyday-focused version, with a 255-hp turbo four-cylinder engine, power sport seats, and navigation. The M440i is the quicker step below the M4, using a 382-hp turbo inline-six with 48-volt mild-hybrid assist, upgraded brakes, a sport-tuned suspension, and an electronically controlled rear differential. Rear-wheel drive and AWD models are represented across the range.
What changed, by category
Structural
The Coupe and Convertible move to the second-generation 4 Series platform with a larger footprint and wider tracks. The Convertible replaces the previous folding hardtop with a lighter fabric soft top, while the four-door Gran Coupe trims leave the 2021 lineup.
Styling
The redesigned body has a lower, wider, and more dramatic appearance than the previous 4 Series.
Powertrain
The 430i’s turbocharged 2.0-liter four-cylinder rises from 248 hp and 258 lb-ft of torque to 255 hp and 295 lb-ft. The renamed M440i replaces the 440i and uses a 382-hp turbocharged 3.0-liter inline-six with 48-volt mild-hybrid assist.
Tech
BMW’s iDrive 7 touchscreen system, navigation, wireless Apple CarPlay, and wireless Android Auto become standard throughout the lineup.
Safety
The standard driver-assistance package expands to include lane departure warning, forward collision warning with automatic braking, blind-spot monitoring, rear cross-traffic alert, automatic high beams, and speed-limit information.
2021 BMW 4 Series specs and features by trim
| Feature | ||||
|---|---|---|---|---|
| Engine | 4-Cyl, Turbo, 2.0 Liter | 6-Cyl, Turbo, 3.0 Liter | 4-Cyl, Turbo, 2.0 Liter | 6-Cyl, Turbo, 3.0 Liter |
| Transmission | Automatic, 8-Spd Sport w/Sport & Manual Modes | Automatic, 8-Spd Sport w/Sport & Manual Modes | Automatic, 8-Spd Sport w/Sport & Manual Modes | Automatic, 8-Spd Sport w/Sport & Manual Modes |
| Drivetrain | RWD | RWD | AWD | AWD |
| Fuel Type | Gas | Gas | Gas | Gas |
| MPG City | 24–26 mpg | 23 mpg | 24 mpg | 22 mpg |
| MPG Highway | 33–34 mpg | 31 mpg | 33 mpg | 31 mpg |
| Horsepower | 255 hp | 382 hp | 255 hp | 382 hp |
| Torque | 295 lb-ft | 364 lb-ft | 295 lb-ft | 364 lb-ft |
| Trunk/Cargo | 9–12 cu-ft | 9 cu-ft | 12 cu-ft | 12 cu-ft |
| Rear Legroom | 32.5–34.5 in | 32.5 in | 34.5 in | 34.5 in |
| Seats | 4 | 4 | 4 | 4 |
| Doors | 2 | 2 | 2 | 2 |
| Adaptive Cruise Control | ||||
| Alarm System | ||||
| Automatic Emergency Braking | ||||
| Automatic High Beams | ||||
| Blindspot Sensors | ||||
| Lane Departure Warning | ||||
| Park Assist | ||||
| Rear View Camera | ||||
| 360 Camera | ||||
| Alloy Wheels | ||||
| LED Headlights | ||||
| Power Moonroof | ||||
| Navigation System | ||||
| Premium Audio | ||||
| USB Ports | ||||
| Aluminum Interior Trim | ||||
| Heated Front Seats | ||||
| Heated Steering Wheel | ||||
| Leather Seats | ||||
| Proximity Keyless Entry | ||||
| Push-Button Engine Start | ||||
| Remote Start | ||||
| Tri-Zone Automatic Air Conditioning | ||||
| Ventilated Front Seats | ||||
| Wood Interior Trim | ||||
Frequently asked questions
Is the 2021 BMW 4 Series fully redesigned?
Yes. The 2021 Coupe and Convertible start the second-generation BMW 4 Series, with a larger and wider body, stronger engines, updated cabin technology, and a broader set of standard driver-assistance features.
How did the 2021 BMW 4 Series engines change?
Both engines are stronger for 2021. The 430i’s turbo four-cylinder makes 255 hp and 295 lb-ft of torque, up from 248 hp and 258 lb-ft, while the M440i uses a 382-hp turbo inline-six with 48-volt mild-hybrid assist.
Does the 2021 BMW 4 Series Convertible have a folding hardtop?
No. The redesigned 2021 Convertible replaces the previous folding hardtop with a lighter fabric soft top.
Was a 2021 BMW 4 Series Gran Coupe offered?
No. The 430i and 440i Gran Coupe variants from the prior lineup were dropped for 2021, leaving the redesigned Coupe and Convertible as the 4 Series body styles for this model year.
What technology and safety equipment became standard on the 2021 BMW 4 Series?
Navigation, iDrive 7, wireless Apple CarPlay, and wireless Android Auto became standard throughout the 2021 lineup. Standard driver-assistance features include forward collision warning with braking, lane departure warning, blind-spot monitoring, rear cross-traffic alert, automatic high beams, and speed-limit information.
2021 BMW 4 Series Reviews
What owners are saying about the 2021 BMW 4 Series.
4.5
2021 BMW 4 Series
(703 reviews)
“The G82 M4 Competition is a drivers car. Power delivery is linear and visceral when called for and smooth/refined when dialed up that way. Spirited driving and cruising are equally as enjoyable. Steering feel and overall communication of the chassis is stellar and linear. Simply put, it is a FUN car to drive, own and experience. Solid value for the overall performance and refinement included.”
“BMW offers the perfect drivers' car. If you enjoy driving and would like a car that makes it even easier, get a BMW.”