2020 BMW 4 Series: What's New, Specs & Features

Last updated August 4, 2026

2020 BMW 4 Series

The most important change for the 2020 BMW 4 Series is that Active Driving Assistant became standard across the lineup. This was a light late-cycle update, not a full redesign, with small styling and equipment changes.

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About the 2020 BMW 4 Series

1st generation 4 Series (F32 Coupe, F33 Convertible, F36 Gran Coupe), late-cycle update year; last pre-redesign year for the original Coupe/Convertible and final U.S. year for the original Gran Coupe before the next-generation replacement.

BMW positioned the 4 Series as the more emotional, style-led companion to the 3 Series: lower, sleeker, and more driver-focused, but still comfortable enough for everyday use. In coupe, convertible, and Gran Coupe forms, it blended sporty proportions, rear-drive character, and upscale cabin design with usable technology and available all-wheel drive. For most shoppers, the appeal was simple: stronger visual drama and a more special-feeling driving experience than a standard sport sedan, without stepping all the way up to an M car.

The 2020 lineup spans sleek Coupe and Convertible models plus the more practical four-door Gran Coupe with a rear hatch. The 430i uses a 248-hp turbo four-cylinder, while the 440i adds a smoother, stronger 320-hp turbo inline-six and Harman Kardon audio; xDrive versions add all-wheel drive.

What changed, by category

Safety
Active Driving Assistant became standard across the lineup. It includes lane departure warning, pedestrian warning with partial braking, forward-collision warning with brake preparation, and low-speed collision mitigation with partial braking.
Styling
The exterior received subtle updates, including darker taillights, a revised rear diffuser, and a gloss-black surround for the kidney grille.
Tech
Rain-sensing automatic wipers became standard. Proximity keyless entry changed from standard to optional on the 430i, 430i Gran Coupe, 430i xDrive, and 430i xDrive Gran Coupe.

2020 BMW 4 Series specs and features by trim

Feature
2020 BMW 4 Series430i3 in stock
2020 BMW 4 Series440i0 in stock
2020 BMW 4 Series430i Gran2 in stock
2020 BMW 4 Series440i Gran0 in stock
2020 BMW 4 Series430i xDrive2 in stock
2020 BMW 4 Series440i xDrive1 in stock
2020 BMW 4 Series430i xDrive Gran1 in stock
2020 BMW 4 Series440i xDrive Gran0 in stock
Engine4-Cyl, SULEV, Turbo, 2.0 Liter6-Cyl, Turbo, 3.0 Liter4-Cyl, SULEV, Turbo, 2.0 Liter6-Cyl, Turbo, 3.0 Liter4-Cyl, SULEV, Turbo, 2.0 Liter6-Cyl, Turbo, 3.0 Liter4-Cyl, SULEV, Turbo, 2.0 Liter6-Cyl, Turbo, 3.0 Liter
TransmissionAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd SportAutomatic, 8-Spd Sport
DrivetrainRWDRWDRWDRWDAWDAWDAWDAWD
Fuel TypeGasGasGasGasGasGasGasGas
MPG City23 mpg22 mpg23 mpg22 mpg21–22 mpg20–22 mpg21 mpg22 mpg
MPG Highway34 mpg29–30 mpg34 mpg30 mpg31–32 mpg28–30 mpg31 mpg30 mpg
Horsepower248 hp320 hp248 hp320 hp248 hp320 hp248 hp320 hp
Torque258 lb-ft330 lb-ft258 lb-ft330 lb-ft258 lb-ft330 lb-ft258 lb-ft330 lb-ft
Rear Legroom33.1–33.7 in33.1–33.7 in33.7 in33.7 in33.1–33.7 in33.1–33.7 in33.7 in33.7 in
Seats44554455
Doors22442244
Alarm System
Automatic High Beams
Blindspot Sensors
Lane Departure Warning
Park Assist
Rear View Camera
Alloy Wheels
Fog Lights
LED Headlights
Power Moonroof
Power Retractable Hard Top
Navigation System
Premium Audio
Smartphone Interface
Heated Front Seats
Heated Rear Seats
Heated Steering Wheel
Leather Seats
Proximity Keyless Entry
Push-Button Engine Start
Rear Window Shades

How the 2021 BMW 4 Series compares

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.

Frequently asked questions

Was the 2020 BMW 4 Series redesigned?

No. The 2020 BMW 4 Series was a light late-cycle update to the original generation, not a redesign. The basic body styles and engines carried over, while safety equipment and exterior details changed.

What was the biggest change to the 2020 BMW 4 Series?

The biggest change was standard Active Driving Assistant across the entire 2020 lineup. It brought lane departure warning, pedestrian warning, forward-collision warning, and partial automatic braking to every version.

How does the 2020 BMW 4 Series differ from the 2019 model?

The 2020 model adds standard Active Driving Assistant and rain-sensing wipers, along with darker taillights, a revised rear diffuser, and a gloss-black grille surround. Proximity keyless entry also changed from standard to optional on the four-cylinder 430i models.

Which body styles returned for the 2020 BMW 4 Series?

The 2020 BMW 4 Series returned as a two-door Coupe, a Convertible, and a four-door Gran Coupe with a rear hatch. All three body styles retained 430i and 440i versions, including all-wheel-drive variants.

Is the 2020 BMW 4 Series worth considering over the 2019 model?

The 2020 model is the more appealing year if standard driver-assistance features matter to you. Otherwise, it remains very similar to the 2019 model in its engines, body styles, and overall design.

2020 BMW 4 Series Reviews

What owners are saying about the 2020 BMW 4 Series.

4.5
2020 BMW 4 Series
(247 reviews)
5 stars (141)
4 stars (85)
3 stars (17)
2 stars (4)
1 star (0)

About owner reviews

Carvana owner reviews are provided in partnership with Strategic Vision, one of the largest automotive consumer research providers in the U.S. Star ratings are from ranking surveys completed by owners one to six months post-purchase. Comments from owners are optional, but included here when available.

No rating

“I would tell them that the pure power and driving experience in this car is like no other. It's fun to drive, it looks and sounds great, and it's unique.”

ONOmar N.
2020 BMW 4 Series M4 Base Coupe

“Don't get the same one that's copying and less original. But seriously, its a great vehicle and I strongly recommend it to everyone. As long as it's a different color scheme than mine.”

AWAmir W.
2020 BMW 4 Series M4 Base Coupe
No rating

“Great styling, great performance including acceleration and stopping, and great safety features.”

KSKen S.
2020 BMW 4 Series M4 Convertible RWD