Review of the BMW 4 Series Convertible: Performance, Style, and Features

The BMW 4 Series Convertible has returned to a fabric roof, enhancing luggage space compared to its previous metal-roof iteration. It offers mild-hybrid engine technology, improving performance and efficiency, and lacks direct rivals. The default 420i model, with a 2.0-litre turbocharged petrol engine, is financially sensible but carries extra weight compared to the coupe. For more power, there’s the 369bhp M440i, delivering swift acceleration. The interior resembles the BMW 3 Series, providing a comfortable driving position and user-friendly infotainment. Practicality is reasonable, with ample front storage and better boot space with the roof up. The car is well-equipped, has high resale value, and scored top safety ratings. Prices start from £48,000.


We love a bit of innovation, but sometimes traditional methods are best – as evidenced by the BMW 4 Series Convertible.

What Car? says…

The BMW 4 Series Convertible has circled back to its roots with a fabric soft top, after an experiment with a folding metal roof in the previous generation. This change isn’t just nostalgic, it’s practical. A soft top takes up significantly less space, allowing for both your luggage and the roof to fit comfortably. Moreover, this model features mild-hybrid engine technology, enhancing both performance and efficiency.

Currently, the 4 Series Convertible has few direct competitors, but if you’re engine-hopping, you might also consider the BMW Z4, the Porsche 718 Boxster, or even the VW T-Roc Convertible. So, how does the BMW 4 Series Convertible fare in terms of performance, interior quality, practicality, and costs? Read on to find out.

Performance and Drive

What it’s like to drive, and how quiet it is

The range begins with the 420i model, which houses a 2.0-litre turbocharged petrol engine producing 181bhp. This setup is expected to suffice for most drivers, offering a lively ride without breaking the bank.

Performance Metrics

  • Acceleration: The 420i model takes a modest 8.2 seconds to sprint from 0-62mph.
  • Engine Options: For those desiring more power, the 369bhp M440i petrol provides exhilarating acceleration (0-62mph in just 4.9 seconds).

Driving Dynamics

The standard automatic gearbox offers smooth shifts and an engaging drive, especially in Sport mode via paddle shifters on the steering wheel. Despite the typical worries related to structural rigidity in convertibles, the 4 Series Convertible stands out. The rearview mirror may wobble occasionally, but the precise steering ensures you can maneuver the car with accuracy.

Suspension and Comfort

Opting for the M Sport Pro Package or the M440i engine gets you the M Adaptive Suspension, which allows switching between ride modes. These include:

  • Comfort Mode: Ideal for bumpy roads due to its extra suppleness.
  • Sport Mode: Focused and stiffer for performance driving.

Noise and Wind Management

When deployed, the fabric roof effectively minimizes noise, although some amount of road noise persists. Nevertheless, dropping the roof won’t leave you looking like you’ve been through a storm, especially if you have the optional Hot Air Collar and wind deflector.

Driving Overview

  • Strengths: Punchy engines, rewarding drive, comfortable ride with adaptive suspension.
  • Weaknesses: Some road noise at higher speeds.


The Interior Arrangement, Fit, and Finish

Stepping inside the 4 Series Convertible may make you feel like you’ve entered a BMW 3 Series. The dashboard, the driving position, and the infotainment system are nearly identical, which translates to a high-quality, user-friendly experience.

Seats and Visibility

  • Driver’s Seat: Adjustable with optional lumbar support, ensuring a comfortable ride.
  • Visibility: Good forward visibility, but rear visibility can be tricky with the roof up.

Build Quality and Technology

The build quality is superb, with high-grade materials used throughout. The driver benefits from a 12.3in digital display and a 14.9in central infotainment screen. The system supports Android Auto and Apple CarPlay, along with a built-in sat-nav and DAB radio. Optional features like wireless phone charging and a high-quality Harman Kardon audio system further enhance the tech quotient.

Internal Overview

  • Strengths: User-friendly infotainment system, stylish, high-quality interior.
  • Weaknesses: None identified so far.

Passenger and Boot Space

How It Deals with People and Disorder

While practicality might not be the main draw of a two-door convertible, the BMW 4 Series Convertible offers enough room for four seats and practical storage.

Front and Rear Space

  • Front: Comparable to the BMW 3 Series, offering ample head and legroom.
  • Rear: Entering the back may be a bit of a squeeze, but once inside, the seats offer decent leg room.

Boot Space

  • With Roof Up: The boot is slightly smaller than in the coupe but can still accommodate up to six carry-on suitcases.
  • With Roof Down: Offers less space but retains practicality with levers to fold the rear backrest.

Practicality Overview

  • Strengths: Ample front space and storage, good-sized rear seats.
  • Weaknesses: Boot opening could be wider, rear seats less versatile than the coupe.

Buying and Owning

Daily Costs, Reliability, and Safety

The BMW 4 Series Convertible starts at just over £48,000, with the 420i being the most cost-effective option. Expectedly, the model holds its value well.

Standard Equipment

Entry-level M Sport trim comes loaded with essentials like 18-inch alloy wheels, leather seats, and adaptive LED headlights. Opting for the M Sport Pro Package adds adaptive suspension for an even smoother ride.

Safety and Reliability

The 4 Series Convertible received a five-star rating from Euro NCAP thanks to its standard collision-prevention systems. The model also allows for additional safety features through the Driving Assistant Professional Pack.

Cost Overview

  • Strengths: Generous standard equipment, high resale value.
  • Weaknesses: Numerous optional features can quickly elevate the price.

Frequently Asked Questions

Is the 4 Series Convertible a hard top?

Not anymore. The current generation features a soft top, unlike the rigid convertible range from 2014 to 2022.

Which 4 Series Convertible model is the best?

The M Sport trim with the M Sport Pro package for optimal ride quality, and the 420i petrol engine for a balance of performance and cost.

Cost of 4 Series Convertible?

Starting from just over £48,000, but check for the latest prices and deals.

For all the latest reviews, tips, and new car deals, join the What Car? newsletter here.

5/5 - (419 bình chọn)
Back to top button
Enable referrer and click cookie to search for faae57362436f822 963ac0bdc4194138 [] 2.7.34