Which is the most popular engine in the BMW 4 Series?

The diesel engines have been the most popular because they offer a good amount of power and are efficient, so they are cheaper to run, but the petrols are more fun to drive. The 420d is the best choice in terms of efficiency because it has a fuel economy rating of 60mpg.

Which are the most popular model variants?

Most models were offered as a Sport or M Sport variant. The most popular of these two has been the M Sport with its upgraded suspension, unique steering wheel, M-type body styling and available metallic paint.

What optional extras should I look out for?

BMW has offered an available Live Cockpit Pro system with a head-up display that reduces distractions while driving. There are also some models with the Parking Assistant Plus technology, which is super helpful when trying to get into tight spaces.

Is the BMW 4 Series a good family car?

Yes, even with the two-door coupé, the back seat offers enough room for children. Those who need additional space could consider the 4 Series Gran Coupé bodystyle instead.

Is there a hybrid version of the BMW 4 Series?

BMW has only used mild hybrid technology with the 4 Series engines, and these don't ever need be plugged in. However, there are electric versions based on the 4 Series, such as the i4 and i4 M50.

Is the BMW 4 Series available as an automatic?

The 4 Series has been available as both an automatic and a manual. The majority of used models come with an automatic transmission, so they are easy to find, but there's a good amount of manual examples as well.

Is there a four-wheel drive version available?

BMW has offered the 4 Series with standard rear-wheel drive, but there were some variants built with four-wheel drive, so either can be found among used cars - look out for ones badged as xDrive. With rear-wheel drive, drivers can expect sports-car-like handling, while four-wheel drive increases the traction and grip on the road.

968 Used BMW 4 Series cars for sale

BMW 4 Series2021 (71) - 2.0 420i M Sport Coupe 2dr Petrol Auto Euro 6 (s/s) (184 ps)

Low Mileage

£27,495

Finance available £544 pm

2L
25.4K
Miles
Petrol
Automatic
Coupe

Shadow Automotive Ltd

01780431436 *

5/5 Stars

BMW 4 Series2021 (71) - 2.0 420i M Sport Convertible in White, 47,200 miles, 1 owner, Automatic, UL 2-Door

£26,999

Finance available £534 pm

2L
47.2K
Miles
Petrol
Automatic
Convertible

Approved Cars Ltd

01622239718 *

3.8/5 Stars

BMW 4 Series2025 - 420I M Sport 5Dr Step Auto

£36,999

Finance available £740 pm

2L
3.9K
Miles
Petrol
Automatic
Hatchback

Lookers Stoke-on-Trent BMW

01782917219 *

BMW 4 Series2018 - 420d [190] xDrive M Sport 5dr Auto [Prof Media]

Reduced

£11,995

Finance available £246 pm

2L
104.5K
Miles
Diesel
Automatic
Hatchback

Fleetwise

02890022201 *

BMW 4 Series2017 (67) - 3.0 435d M Sport Convertible 2dr Diesel Auto xDrive Euro 6 (s/s) (313 ps)

Reduced

£15,995

Finance available £335 pm

3L
98.8K
Miles
Diesel
Automatic
Convertible

Baskeyfield Motors Limited

01782917824 *

BMW 4 Series2025 - 420i M Sport 5dr Step Auto

Low Mileage

£38,900

2L
2.0K
Miles
Petrol
Automatic
Hatchback

Stratstone BMW Maidstone

01622234873 *

3.7/5 Stars

BMW 4 Series2020 - 420i M Sport 2dr Auto [Professional Media]

£17,149

Finance available £350 pm

2L
50.6K
Miles
Petrol
Semi Auto
Coupe

cinch Warehouse Corby

01536219125 *

4.2/5 Stars

BMW 4 Series2015 (15) - 420i xDrive M Sport 2dr Auto

Low Mileage

£12,995

Finance available £268 pm

2L
55.0K
Miles
Petrol
Automatic
Coupe

Grampian Cars

01261450003 *

4.3/5 Stars

BMW 4 Series2017 (17) - 420d [190] M Sport 5dr Auto [Professional Media]

£13,800

Finance available £286 pm

2L
74.0K
Miles
Diesel
Automatic
Hatchback

Mylson Ltd

01616698222 *

4.8/5 Stars

BMW 4 Series2022 - 420i M Sport 2dr Step Auto

£27,377

2L
29.2K
Miles
Petrol
Automatic
Coupe

Marshall Audi Newbury

01635917224 *

BMW 4 Series2015 (65) - 3.0 435i M Sport Coupe 2dr Petrol Auto Euro 6 (s/s) (306 ps)

Low Mileage

£15,695

3L
62.0K
Miles
Petrol
Automatic
Coupe

Wavertree Car Centre

01513189401 *

BMW 4 Series2017 - 420d [190] M Sport 2dr Auto [Professional Media]

£16,450

2L
75.8K
Miles
Diesel
Automatic
Coupe

Stratstone BMW Milton Keynes

01908104093 *

4.6/5 Stars

BMW 4 Series2020 - 3.0 M4 Semi-Auto 2dr

Low Mileage

£34,795

Finance available £694 pm

3L
13.0K
Miles
Petrol
Automatic
Coupe

Fine & Country Automotive Limited

01799610960 *

4.3/5 Stars

BMW 4 Series2021 - M440i xDrive MHT 2dr Coupe

£33,990

Finance available £678 pm

3L
61.5K
Miles
Petrol
Automatic
Coupe

Harvey Cooper Cars

01765532622 *

BMW 4 Series2023 - 420i M Sport 5dr Step Auto

£29,499

Finance available £585 pm

2L
29.2K
Miles
Petrol
Automatic
Hatchback

Lookers Stoke-on-Trent BMW

01782917219 *

BMW 4 Series2020 (70) - 2.0 420d M Sport Convertible 2dr Diesel Auto Euro 6 (s/s) (190 ps)

£18,995

Finance available £370 pm

2L
56.0K
Miles
Diesel
Automatic
Convertible

Peverel car company ltd

01245204345 *

BMW 4 Series2021 - 430i M Sport 2dr Step Auto

Low Mileage

£30,998

2L
26.4K
Miles
Petrol
Automatic
Coupe

Arnold Clark Irvine BMW

01294440528 *

4.7/5 Stars

BMW 4 Series2015 (65) - 2.0 420d M Sport Auto xDrive Euro 6 (s/s) 2dr

Reduced

£7,989

2L
134.0K
Miles
Diesel
Automatic
Coupe

Motorhub

01535281058 *

BMW 4 Series2021 (21) - 2.0 420i M Sport Pro Edition Convertible 2dr Petrol Auto Euro 6 (s/s) (184

£31,990

Finance available £637 pm

2L
38.0K
Miles
Petrol
Automatic
Convertible

Assured Chichester

01243214214 *

BMW 4 Series2025 - 420i M Sport 5dr Step Auto

Low Mileage

£38,990

2L
3.6K
Miles
Petrol
Automatic
Hatchback

Stratstone BMW Milton Keynes

01908104093 *

4.6/5 Stars

Why buy a used BMW 4 Series?

If you're in the market for a car that's refined, upmarket and exciting to drive, then a used BMW 4 Series is a great choice. With a stylish appearance and several bodystyles to choose from, the 4 Series is known to turn heads. BMW supplies many engine options, high-tech equipment and a comprehensive safety kit to make the 4 Series an excellent luxury coupé.

Used BMW 4 Series snapshot review

Author: Jack Evans

View profile

Pros

Fun to drive
Lots of quality equipment
Great looking exterior

Cons

M Sport ride can be very firm
Practicality does suffer
Diesels lack refinement

Read our BMW 4 Series review

BMW 4 Series video review

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Used BMW 4 Series buying guide

Engines and transmissions

There have been many options with the BMW 4 Series, including diesel or petrol engines, an automatic or manual transmission, and rear- or four-wheel drive.

Petrol

420i 2.0-litre engine creates 181bhp for a 7.3-second 0-60mph time and an efficiency rating of up to 44.8mpg.
430i 2.0-litre engine uses the same four-cylinder engine, but creates 254bhp with a similar efficiency.
M440i 3.0-litre engine increases the output to 368bhp, reducing the 0-60mph time to 4.4 seconds and changing the efficiency to 36.2mpg.

Diesel

420d uses mild hybrid technology to make 187bhp for a 0-60mph time of 6.9 seconds, with an efficiency rating of around 60mpg.
430d is rated for 281bhp, reducing the 0-60mph time to 4.9 seconds with a lower efficiency rating of 52.3mpg.
M440d is the most powerful diesel, with a rating of 335bhp, creating a 4.5-second 0-60mph time.

Practicality

The 4 Series may only have two doors, but it's a relatively practical sports coupé with a decent amount of room inside and a large boot.

Interior space

Driver sits low, but there are plenty of adjustments to get the right positioning.
Front seats slide forward to let rear passengers in and out easier.
ISOFIX points for child seats are found under covers for protection.
Newer models have rear climate control for added comfort.

Boot space

440-litre boot is similar to the Audi A5 and more than the Mercedes-Benz C-Class Coupe.
Rear seat can be lowered with levers in the boot, creating a large load space with a flat floor.
Boot includes a 12V socket and shopping hooks.

Bodystyles

Coupé is the original sports car design with two doors.
Convertible adds to the two-door coupé with a drop top.
4 Series Gran Coupé (reviewed separately) offers more interior room with the four-door style.

Safety

2019 Euro NCAP rating was a perfect five stars.
Adult occupant rating is 97%, while vulnerable road users is 93%.
Standard kit includes autonomous emergency braking, pedestrian detection, lane assist and an active bonnet.

Technology

10.25-inch touchscreen display can be activated with voice control.
12.3-inch instrument display replaces older-style gauges.
Connectivity available through Bluetooth, Apple CarPlay and Android Auto.

Different generations of used BMW 4 Series

The BMW 4 Series is based on the 3 Series saloon and hit the market in 2013. With its sleek styling, dual kidney grille and front inlet design, it was sportier than the 3 Series, even though the size was roughly the same. A second generation was released with several updates, keeping the 4 Series relevant and ahead of the competition. BMW continues to refine the engine options and add new equipment to the lineup, offering great value for buyers looking for a premium car.

Second Generation (2020 to Present)

The second-generation 4 Series had a different design from the original version. The kidney grille was made larger and the air vents installed to cool the brakes increased in size. From the silhouette alone, the 4 Series closely resembled the 8 Series, and it was finished with a dual exhaust in the rear.

BMW released a facelift in 2024 to make some upgrades. Horizontal slats were added to soften the image and new headlights were installed. Even though the shape of the car didn't change, it looked almost entirely new.

Fuel type:: Diesel / Petrol
Engine Size:: 2 - 3
MPG:: 26 - 61
Acceleration:: 3.5 - 8.2 seconds
Boot space:: 385 - 470 L capacity
NCAP Safety rating:: 5 / 5 stars

Greenest
420i M Sport 2dr Step Auto
Cheapest
420i M Sport 2dr Step Auto
Fastest
B4 GT 3.0 Bi Turbo 5dr Switch-Tronic AWD

First Generation (2019 to 2021)

Based on the same platform as the 3 Series, BMW took the coupé version and made it into the 4 Series. Initially, it had many of the same styling features, with a narrow, wide grille and swept-back headlights, but it sat lower to the ground and had a wider stance than its counterpart.

A 2018 update was released, but the styling wasn't changed significantly. Instead, BMW focused on adding more equipment from a technology and comfort standpoint.

Fuel type:: Diesel / Petrol
Engine Size:: 2 - 3
MPG:: 34 - 58
Acceleration:: 4.8 - 8.1 seconds
Boot space:: 480 L capacity
NCAP Safety rating:: 5 / 5 stars

Greenest
430i M Sport 5dr Auto [Plus Pack]
Cheapest
420i M Sport 5dr [Plus Pack]
Fastest
435d xDrive M Sport 5dr Auto [Plus Pack]

Buying a used car checklist: what to look for

Buying a used car can be a daunting task, but with our checklist, you can make sure you’re getting the best deal possible.

View guides

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