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Brand New BMW 4 Series 420i M Sport 2dr Step Auto

Available at BMW branches
From £45,970
£999 deposit
£599 per month

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Featured specification

Standard specification

Driver Convenience

Active guard plusAttentiveness assist
Auto start-stopBluetooth hands free facility with USB audio interface with audio streaming
BMW ConnectedDrive online servicesBMW emergency call
BMW Live Cockpit Professional Nav with 12.3" instrument display + 10.25" display, Intelligent Voice Assist, BMW OS 7, HDD, 2USB, 4G LTE connectBMW service history
BMW TeleservicesBrake pad wear indicator in front and rear
Check Control warning system for monitoring of lights and door/luggage compartment open warningCondition based service
Cruise control with brake assistElectric power steering
Electric power steering with Servotronic steering optimised at all speed rangesGearshift time display in manual mode
iDrive controller on centre consoleInstrument cluster with speedometer with mph readout, tachometer, fuel gauge and oil temperature gauge
Integrated owners handbookOil sensor for level and grade, warning by check control system
On board computer - average speed, fuel consumption, outside temp display with acoustic warning, clock/date, service interval, odometer/trip meterOptimum shift indicator
Variable sport steering 

Engine/Drivetrain/Suspension

8 speed automatic steptronic transmission with gearshift paddlesBalanced 50/50 weight distribution
Double VANOSDrive performance control - ECO PRO, comfort and sport modes
High precision injectionLow centre of gravity
M sport suspensionPetrol Particulate Filter
Stroke dependent dampersVALVETRONIC engine management

Entertainment

DAB tunerElectronic service booklet

Exterior Features

Acoustic glazingAdaptive LED Headlights
Automatic headlight beam throw control with load dependent regulating reaction, dynamic compensation of braking dive and acceleration squatAutomatically dimming electrochromatic rear view mirror
BMW emblem on engine compartment lid and tailgateBMW kidney grille with mesh grille front side of the nuggets in matt aluminium and frame in chrome high gloss
Body colour fuel filler flapBody colour roof fin
Brushed aluminium inserts in the front door sill finishers with BMW designationDynamic brake lights
Electric windows - front and rear, with open/close fingertip control, anti trap facility and comfort closing function all roundExhaust tailpipe - split left and right
Exterior mirrors - electrically folding with anti-dazzleFading support
Front and rear bumper systemFront apron plastic in body colour
Green tinted heat protection glazingHigh gloss shadow line exterior trim
Illuminated bow type door handles in body colour drivers side with door lockInterior rear view electrochromatic mirror with automatic anti dazzle function
LED front fog lightsLicence plate panel integrated into front bumper and tailgate
Lightweight engineeringM designation on front side panels, left and right
M sport rear spoilerModel designation on right side of tailgate
One piece front bumper cover including towing eye cover in body colourPreparation for high beam assistant
Rain sensorSide frame decorative moulding black matt
Two part LED tailights in L-shape with components in smoked glass, brake light, LED turn indicator and rear fog lightVisible VIN plate
Welcome lights in interior and door handle areaWidened track and increased camber values for max transverse dynamics, agility and steering precision
Window recess cover black high glossWindscreen wipers with integrated washing jets

Interior Features

12V power socket in front centre console2 front cupholder in centre console with clamping elements and matt black inlay
2 Rear seat headrests3 spoke M leather multifunction steering wheel
3 zone automatic air conditioning4 pieces lashing eyelets in luggage compartment
40:20:40 split folding rear seat and rear centre armrest with two cupholdersAmbient lighting with welcome carpet light
Armrest integrated in front and rear door trim + front centre console armrestElectric seat adjustment with memory
Four grab handles integrated in roof liningFront and rear door exit lighting (left / right)
Front and rear door pocketsFront and rear footwell lights
Front and rear reading lightsFront headrests
Front seat backrest width adjustmentFront sport seats
Heated driver and front passenger seatsHeight adjustable mechanically and infinitely variable steering column
Illuminated armrest storage compartmentIlluminated glove compartment with separate small compartment
Luggage compartment lightMake-up mirror lights
Storage compartment in rear centre consoleSunvisors with vanity mirrors and ticket pocket
Toolkit located in luggage compartmentVelour front floor mats
Vernasca leather upholstery 

Packs

Connected professional pack - 4 SeriesM sport exterior styling pack - 4 Series

Passive Safety

2 x 3-point rear seat beltsBattery safety cut-off
Brake energy regenerationBraking pre-tensioning
CBC - (Cornering brake control)Child proof locking system in rear door
Child seat ISOFIX attachment for the two outer rear seatsCoasting in idle in ECO PRO mode
Crash sensor activating of airbags,Unlocking doors,hazard warning lights,fuel cut off,interior lighting+activation of safety battery terminal clampDriver and front passenger side airbags, integrated in the door side seat backrest bolsters for all seat variants
Driver/Front Passenger airbagsDry braking
Dynamic brake controlDynamic stability control + (DSC+) - Anti-lock Braking System (ABS) with brake assist and cornering brake control + Automatic Stability Control (ASC)
Dynamic Traction Control - DTCElectromechanical parking brake including automatic hold function and automatic release of the parking brake when pulling away
Electronic differential lock control (EDLC)Front and rear ventilated brake disc
Front passenger manual airbag deactivationHead airbags for all 4 outer seats
Hill start assistantSeat belt security check for driver and front passenger
Seat belt with belt stopper, pyrotechnic belt tensioners and belt force limitersSide impact protection
Tyre pressure monitoring with three level warning strategyWarning triangle and first aid kit

Security

Alarm system (Thatcham 1) with remote control and electronic engine immobiliserCentral locking switch for all doors, fuel filler cap and luggage compartment
Remote control with integrated key one button open/close vehicle and windows, sole opening of the luggage compartment lid and panic modeStart/stop button with Comfort Go keyless engine start and auto Start/stop deactivation button
Vehicle key with M specific designation 

Trim

Sensatec instrument panel 

Wheels

Reduced rolling resistance tyres
The vehicle information above was correct at time of manufacture. Please speak to the dealership for full current specification.

Technical specification

Emissions - ICE

Standard Euro EmissionsEURO 6WLTP - CO2 (g/km) - Comb154
WLTP - CO2 (g/km) - Comb - Max161WLTP - CO2 (g/km) - Comb - Min154
WLTP - CO2 (g/km) - Extra High150WLTP - CO2 (g/km) - Extra High - Max158
WLTP - CO2 (g/km) - Extra High - Min150WLTP - CO2 (g/km) - High133
WLTP - CO2 (g/km) - High - Max139WLTP - CO2 (g/km) - High - Min133
WLTP - CO2 (g/km) - Low212WLTP - CO2 (g/km) - Low - Max219
WLTP - CO2 (g/km) - Low - Min212WLTP - CO2 (g/km) - Medium156
WLTP - CO2 (g/km) - Medium - Max164WLTP - CO2 (g/km) - Medium - Min156

Engine and Drive Train

CamshaftDOHCCatalytic ConvertorTrue
CC1998Compression Ratio11.0:1
Cylinder LayoutIN-LINECylinders4
Cylinders - Bore (mm)82Cylinders - Stroke (mm)94.6
Engine CodeB48B20M1Engine LayoutNORTH SOUTH
Fuel DeliveryTURBO INJECTIONGears8 SPEED
Number of Valves16TransmissionSEMI-AUTO

Fuel Consumption - ICE

WLTP - FC (l/100km) - Comb6.8WLTP - FC (l/100km) - Comb - Max7.1
WLTP - FC (l/100km) - Comb - Min6.8WLTP - FC (l/100km) - Extra High6.6
WLTP - FC (l/100km) - Extra High - Max6.9WLTP - FC (l/100km) - Extra High - Min6.6
WLTP - FC (l/100km) - High5.8WLTP - FC (l/100km) - High - Max6.1
WLTP - FC (l/100km) - High - Min5.8WLTP - FC (l/100km) - Low9.3
WLTP - FC (l/100km) - Low - Max9.6WLTP - FC (l/100km) - Low - Min9.3
WLTP - FC (l/100km) - Medium6.9WLTP - FC (l/100km) - Medium - Max7.2
WLTP - FC (l/100km) - Medium - Min6.9WLTP - MPG - Comb41.5
WLTP - MPG - Comb - Max39.8WLTP - MPG - Comb - Min41.5
WLTP - MPG - Extra High42.8WLTP - MPG - Extra High - Max40.9
WLTP - MPG - Extra High - Min42.8WLTP - MPG - High48.7
WLTP - MPG - High - Max46.3WLTP - MPG - High - Min48.7
WLTP - MPG - Low30.4WLTP - MPG - Low - Max29.4
WLTP - MPG - Low - Min30.4WLTP - MPG - Medium40.9
WLTP - MPG - Medium - Max39.2WLTP - MPG - Medium - Min40.9

General

Badge Engine CC2.0Badge Power184
Coin DescriptioniCoin SeriesM Sport
Generation Mark2Insurance Group 1 - 50 Effective January 0737E
Standard manufacturers warranty - Mileage999999Standard manufacturers warranty - Years3
Vehicle Homologation ClassM1 

Performance

0 to 62 mph (secs)8.2Engine Power - BHP184
Engine Power - KW135Engine Power - PSTrue
Engine Power - RPM5000Engine Torque - LBS.FT221
Engine Torque - MKG30.6Engine Torque - NM300
Engine Torque - RPM1350Top Speed147

Test Cycles

Emissions Test CycleWLTPRDE Certification LevelRDE 2

Tyres

Alloys?TrueTyre Size Front225/45 R18
Tyre Size Rear225/45 R18Tyre Size SpareTYRE REPAIR KIT
Wheel StyleDOUBLE SPOKE STYLE 848MWheel Type18" ALLOY

Vehicle Dimensions

Height1384Length4768
Wheelbase2851Width1852
Width (including mirrors)2081 

Weight and Capacities

Fuel Tank Capacity (Litres)59Gross Vehicle Weight2185
Luggage Capacity (Seats Up)385Max. Loading Weight495
Max. Towing Weight - Braked1600Max. Towing Weight - Unbraked750
Minimum Kerbweight1690No. of Seats4
Turning Circle - Kerb to Kerb11.4
The vehicle information above was correct at time of manufacture. Please speak to the dealership for full current specification.

Independent review

Review courtesy of Car and Driving

BMW 4 Series Convertible

BMW's 4 Series Convertible has more individual appeal in second generation form. Jonathan Crouch takes a look.

Ten Second Review

BMW's second generation 4 Series Convertible switches to a fabric-folding roof and so can now offer a more credible alternative option to executive segment mid-sized cabriolet buyers not already swayed by the competing charms of rival open-topped versions of the Audi A5 and Mercedes C-Class. You won't get the large boot and cutting-edge driving dynamics of the 4 Series Coupe, but compensations come in the form of refinement, security and drop-top desirability. You'd like one.

Background

Sharper than its predecessor and echoing the bold style of its 4 Series Coupe showroom stablemate, BMW's second generation 4 Series Convertible aims to blend sporting driving pleasure and open-air thrills to continue the 35-year legacy in this model class that began with the Munich maker's first 3 Series Convertible. As before, it sizes up to the same two segment arch-rivals, Audi's A5 Convertible and the Mercedes C-Class Cabriolet - and does so now more directly thanks to the adoption of a fabric roof. And plenty of changes under the skin aim to make it a bit more of a driver's car than before.

Driving Experience

BMW has worked hard to ensure that this 4 Series Convertible's handling is as close to that of the equivalent Coupe as possible, using extra bracing and special panels to improve body rigidity, which the company says is 4% better than the previous generation metal-topped model. As usual with this model range, there's rear wheel drive and xDrive 4WD for the fastest models (though this AWD system isn't available with lesser engines as it is on the Coupe). Plus there's a freshly developed double-jointed spring-strut front suspension and a 5-link rear axle. Engine-wise, the key news is introduction of 48V mild hybrid tech for the 2.0-litre 184hp diesel engine in the volume 420d. The same mild hybrid tech also features with the six cylinder diesels, the 430d (286hp) and the M440d (340hp). And it's on the quickest mainstream conventional petrol variant too, the six cylinder 374hp M440i xDrive, which features BMW's Sport differential, with electronically-controlled, fully-variable locking function in the rear differential, all of this helping to get the power down through the turns, should you want to drive this car in the kind of enthusiastic manner a likely owner hardly ever would. If you do want the ultimate fast version of this car, you'll be directed to the top M4 Competition M xDrive Convertible model, which has 510hp and gets to 62mph in just 3.7s. Toupees will need to be very firmly tied down. Back in the real world, two conventional 2.0-litre petrol turbo 4 Series Convertible models also feature, the 420i (184hp) and the 430i (258hp). All the engines link up as standard with eight-speed Steptronic auto transmission, which can now be specified with a new optional Sprint function.

Design and Build

No doubt about the main talking point here. The rather inevitable switch from the previous model's metal hard top roof to the same kind of folding fabric top that rivals Audi and Mercedes offer. That means a 40% reduction in roof weight from a soft top that uses panel bow elements and a glass rear window for optimum acoustic and thermal comfort. The electric folding roof takes 18 seconds to open or close and can be used at speeds of up to 31mph. Otherwise, as with the Coupe version of this model, the key change is the adoption of a more vertical upright kidney grille, intended to reference classic BMWs like the pre-war 328 sports car. It's a move that's evoked a mixed reaction from brand loyalists, but as Design chief Domagoj Dukec points out, until the 1980s, the grille is on BMWs were always more vertical than horizontal. Inside, the cabin follows some of the latest BMW design trends, with a revised dash layout including a smarter drive selector and a start button in the centre console. The 'BMW Live Cockpit Professional' dash set-up is standard, offering a fully digital screen layout that gives you a high-resolution 12.3-inch instrument cluster behind the steering wheel and a 10.25-inch iDrive infotainment Central Control Display. There are also re-designed sports seats and the option of a re-designed head-up display. As before, this is billed as a 'proper four-seater', though the rear seat isn't as comfortable as in the Coupe. Predictably, there's not as much boot space either, the Coupe variant's 440-litre capacity figure falling to 385-litres with the roof closed and 300-litres with the top down.

Market and Model

Sporty 'M Sport' trim is standardised this time round and prices start from around £46,000 for the entry-level 420i, which means a big price premium of almost £6,000 over the equivalent Coupe model. There's a further premium of around £2,200 if you want the 420d diesel version. You're looking at around £50,000 for a 430i. And think in terms of around £60,000 if you want the M440i xDrive model. The top M4 Competition Convertible M xDrive model is around £82,000. Across the range as an option, there's an 'M Sport Pro' package which includes a special 'Sprint' function for additional bursts of speed and a sporty engine soundtrack in the cabin when the 'SPORT' driving mode is activated. Plus you get M sport brakes, 19-inch 'M light' alloy wheels, a rear spoiler in a high-gloss black, BMW individual high-gloss 'Shadowline' trim with extended features and BMW individual lights and M seat belts. You might also be interested in a browse through the M Performance Parts portfolio, from which you can order things like 20-inch M Performance forged light alloy wheels in a Y-spoke design with a Jet Black matt finish. Or maybe a carbon fibre finish for the front grille, front splitter and side skirts, as well as aero flicks for the front apron in high-gloss black.

Cost of Ownership

Mild hybrid technology has been included with all diesel engines and with the straight-six petrol unit of the flagship BMW M440i xDrive Convertible. Fitting a 48V starter-generator and second battery greatly increases the scope for utilising Brake Energy Regeneration and the electrical power it produces. The recuperated energy collected by the 48V battery can be supplied to the 12V electrical system or used for generating additional drive power when fed back to the 48V starter-generator. When the car is accelerating, the generator is also able to offer the driver an electric boost effect that instantly makes an extra 11hp available. All of which should promise a very competitive set of efficiency stats. Let's see. We'll start with the petrol models. The 420i manages up to 49.6mpg on the combined cycle and up to 131g/km of CO2. For the 430i version, the figures are up to 47.1mpg and up to 138g/km. For the M440i xDrive, the figures are up to 40.9mpg and up to 159g/km. What about the diesels? For the 420d, the official figures are up 67.3mpg and up to 111g/km. For the 430d, it's up to 50.4mpg and up to 147g/km. For the M440d xDrive, it's up to 44.8mpg and 165g/km. Finally for the M4 version, it's 27.7mpg and 231g/km.

Summary

Like many of its owners will be, BMW is quietly satisfied with this 4 Series Convertible. Would this car be a more engaging driving machine without the extra weight of its roof mechanicals? The extra sharpness of its 4 Series Coupe stablemate certainly suggests that. I sense though, that most buyers of this open-topped version will be quite happy with a more relaxed, comfortable demeanour. That is, after all, as much as competitors from Audi and Mercedes offer - and those brands can't deliver the engine choice BMW provides here. In fact, a lot of boxes are ticked by this car if you can afford its asking price. You get impressive safety systems, high residual values, above average rear seat legroom and a sheer depth of engineering that rarely fails to impress. As a result, in many ways, it's probably the most complete contender in this segment and, best of all, it looks as striking and expensive as a convertible of this kind should when the sun's out and all is right with the world. True, there are probably all kinds of ways of more sensibly spending the budget required for one of these. You know what though? Right here, right now, I can't really think of any....

Performance
80%
Handling
70%
Comfort
70%
Space
60%
Styling
70%
Build
80%
Value
50%
Equipment
80%
Economy
70%
Depreciation
80%
Insurance
60%

Personal contract purchase

Monthly payment£599
Deposit£999
Term (months)47
Fixed interest rate1.5%
Cash price£45,970
Credit amount£41,453.29
Guaranteed future value£16,650
Total amount payable£49,319.71
BMW deposit£3517.71
Contract mileage32,000
Excess mileage charge9.56p per mile
Representative APR2.9%
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This vehicle is available at BMW branches.

** Depending on the age of the vehicle, MPG and CO2 may be quoted using either NEDC or WLTP testing standards.  Find out more

Figures are provided for comparison purposes. Fuel consumption under real world driving conditions and the CO2 produced will depend upon a number of factors, including any accessories fitted after registration, variations in driving styles, weather conditions and vehicle load.