Used BMW 4 Series for sale near Slough

CarGurus expert rating: 5 out of 5
CarGurus user rating: 4.7 out of 5
Percentage of good/great deals available on CarGurus: 33.8%
Overall CarGurus rating:* 4.6 out of 5
Available Listings: Around 1,300
Average Price: Around £21,000

BMW 4 Series (2020-present) Pros and Cons

Pros	Cons
Exceptionally good to drive, even by BMW's high standards	Controversial looks, in particular the grille
Superb interior quality	Convertible sacrifices some practicality
Brilliant infotainment system	Adaptive suspension costs extra

Quick Summary

The BMW 4 Series (2020-present) is a true stand-alone model that builds upon the 3 Series platform with a lower ride height, wider rear axle, and more direct steering. Available as a Coupe, Convertible, or Gran Coupe, it combines striking design with exceptional driving dynamics. The two-door Coupe offers a rigid body shell that delivers impeccable ride quality and handling, whilst the Convertible sacrifices some stiffness for open-air motoring but remains one of the best-handling four-seat convertibles available. The Gran Coupe adds practicality with rear doors and a hatchback tailgate, offering 470 litres of boot space—nearly estate car levels of room.

The engine line-up ranges from the efficient 420i with a 2.0-litre turbocharged petrol to the legendary 3.0-litre straight-six M440i xDrive. The 420d diesel delivers impressive economy at up to 61mpg, whilst the 430i offers 249hp from a highly-tuned 2.0-litre petrol unit. All engines pair with a smooth eight-speed automatic gearbox. The interior showcases BMW's renowned quality with soft-touch leather, piano-black highlights, and the intuitive iDrive infotainment system. Running costs are reasonable, with fixed-price servicing available at £25 per month, and residual values expected to remain strong.

Best for: Drivers seeking exceptional handling and refinement, those who value premium interior quality, and buyers wanting an engaging daily driver with advanced technology.

Not ideal for: Those sensitive to controversial styling, buyers prioritising maximum practicality over performance, or those unwilling to pay extra for adaptive suspension.


Comparison vs Key Rivals



The Verdict

You should buy the 4 Series if: You're seeking exceptional handling and refinement, value premium interior quality, or want an engaging daily driver with advanced technology and multiple body styles.

Consider alternatives if: You're sensitive to controversial styling, prioritise maximum practicality over performance, or prefer not to pay extra for adaptive suspension.

Competitive Position: The BMW 4 Series (2020-present) stands as the benchmark in its class, delivering exceptional driving dynamics and interior quality that rivals struggle to match. Whilst the Mercedes-Benz C-Class and Audi A5 offer comparable luxury and refinement, the 4 Series edges ahead with its superior handling and more intuitive infotainment system. The E-Class provides additional space and comfort for those willing to step up in size. The 4 Series' versatility across Coupe, Convertible, and Gran Coupe variants, combined with its engaging performance and meticulous engineering, makes it the standout choice for discerning drivers who refuse to compromise on driving pleasure.

Read our full BMW 4 Series Review

*The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from April 2026, CarGurus expert reviews, and CarGurus user reviews.