With refreshed interior and exterior designs for 2017, the BMW 4 Series Convertible is available in a choice of petrol and diesel engines and models - Sport and M Sport (starting with the 420i and 420d Sport). Several modelsare available with the optional xDrive system. Two exclusive new colours have also been introduced – Sunset Orange (Sport models only) and Snapper Rocks Blue (M Sport models only).

BMW 4 Series Range


Exterior front changes include new Bi-LED headlights with LED corona rings and LED front fog lights as standard, and a re-designed front bumper on the SE and Sport models to include a wider lower section.

Exterior rear changes include new standard LED tail light cluster featuring new sculpted LED light bars and indicators, brake lights and fog lights in LED. The rear bumper has been refreshed on all SE and Sport models, with the reflectors and horizontal trim line now integrated and positioned lower on the bumper adding visual width to the rear.

Within the cabin, changes include ‘Pearl Chrome’ highlights around the air conditioning vents and control panel, new stitching line across the upper surface of the dashboard and a sliding front armrest – all as standard.

Interior styling options include three new leathers (Night Blue, Ivory White and Cognac) and two new interior trims (Aluminium Carbon with Pearl Chrome highlight and Black High-Gloss with Pearl Chrome highlight).

(Model shown with optional BMW icon adaptive headlights).


The BMW 4 Series Convertible comes complete with an array of assistance systems that reliably support you in many different ways while you drive.  Whichever model you choose it will come with BMW ConnectedDrive Services and three years' subscription to BMW Online as standard.  BMW ConnectedDrive technologies mean you benefit from safety and comfort of the highest calibre on every drive, leaving you to concentrate on enjoying the journey.


Dynamic Safety is the BMW ConnectedDrive preventive occupant protection system. If a critical situation arises on the road, the front safety belts are reversibly pre-tensioned and the side windows are closed if necessary. A critical situation would include sudden braking or if the vehicle understeers or oversteers sharply. In certain accident situations, the vehicle can quickly be brought to a complete standstill. This helps reduce the likelihood of a second collision or even prevent one altogether.

In addition, the Attentiveness Assistant also monitors the driver’s behaviour for signs of fatigue. This system analyses the steering response and reacts to irregular driving behaviour with a notification in the Control Display – suggesting the driver take a break.

Dimensions (420i)
Vehicle length 4638 mm / 182.6 in
Vehicle Width 2017 mm / 79.4 in
Vehicle Height
1377 mm / 54.2 in
Wheelbase 2810 mm / 110.6 in
Unladen weight (DIN) 1750 kg / 3858 lb

Engine Cylinders 4
​Engine Capacity​1997 cc
Max Torque 270 nm @ 1250-4500 rpm
Max Power 135 kW @ 5000-6250 rpm
Top Speed 143 mph
Acceleration 0-62 mph / 8.2 sec
Combined cycle 41.5 - 44.1 mpg
Urban cycle 30.7 - 32.8 mpg
CO2 149 - 158 g/km

4 Series Convertible 360° View

Left Right
Model shown is for illustrative purpose only