BMW 4 SERIES GRAN COUPE 420i Sport 5dr Auto [Professional Media]






0 - 62 mph7.7s

WLTP - CO2 (g/km)

WLTP - CO2169 g/km

If you like the look of a BMW 4 Series Coupe but family duties look like forcing you into something a bit frumpier, help is at hand. The 4 Series Gran Coupe retains a sleek shape but adds a couple of rear doors. We think it's a much better bet than the frumpier 3 Series Gran Turismo model.


So the coupe version of the BMW 3 Series is the 4 Series, right? Not if you add two more doors and call it a 4 Series Gran Coupe. Jonathan Crouch reports

Ten Second Review

If you like the look of a BMW 4 Series Coupe but family duties look like forcing you into something a bit frumpier, help is at hand. The 4 Series Gran Coupe retains a sleek shape but adds a couple of rear doors. We think it's a much better bet than the frumpier 3 Series Gran Turismo model.


Stick with us here. This one takes a bit of working out. BMW will sell you a four-door 3 Series but gives the two-door Coupe and Convertible versions a '4 Series' badge. So far, so good. If you want five doors in a compact executive model of this type from BMW, it's a little more complicated. There is a five-door 3 Series - the 'Gran Turismo' model - but very few people buy it. One of the reasons why is the existence of this car, the 4 Series Gran Coupe. Here, you get much more stylish five-door practicality, with all the usual 3 Series good bits underneath. These days, those good bits also include a rejuvenated range of petrol engines, plus the option of xDrive all-wheel drive and, with this recently revised model, smarter styling too. In short, it looks like there's most of what you're going to need here. Let's check this car out.

Driving Experience

Given that the 4 Series Gran Coupe runs on the same running gear as the 4 Series Coupe, it's reasonable to expect similar driving dynamics. The wheelbase, length, track and width of the Gran Coupe are exactly the same as its two-door sibling, so it clues you into what you're going to get. This 4 sits a bit closer to the road than a 3 Series and also gets the coupe's extra bracing between the front subframe and the body, beefing up steering response. On to engines, which are now limited to petrol power. Not much is different with the base four cylinder 184bhp 2.0-litre unit found in the 420i, though it is slightly more efficient than it used to be and, as before, comes in rear wheel drive and xDrive 4WD guises. The pokier version of this powerplant carries a '430i' badge and has 252bhp, with 350Nm of torque, making possible a rest to 62mph time of just 5.9s. That makes it difficult to imagine why you'd want a six cylinder petrol model, but if you still do, there's a 326bhp '440i' variant.

Design and Build

The changes made to this revised 4 Series Gran Coupe are really quite subtle. If you know the car well, you'll spot the new twin LED headlights that now come as standard. An even more distinctive 'Icon Adaptive LED headlight' package is optional. Another frontal change is found in the central air intake which has an aperture that increases in size towards the outer edges, adding a more imposing presence and greater sense of width to the entire nose section. Otherwise, it's as you were. Changes over the 4 Series Coupe obviously include the extra rear doors, but you'll also notice the way that the Gran Coupe roofline has been teased backwards to offer more space, the long boot lid of the Coupe being sacrificed to a more stub-tailed silhouette. Due to the fact that this isn't a long wheelbase variant, you can't expect a great deal more room in the rear. There's a bit more headroom in the back; the roofline sitting 12mm higher. There's a 480-litre boot which gives you an additional 35-litres over the Coupe and the 40/20/40 split rear seat is a nice touch. Fold the seats down and there's a massive 1,300 litres available. BMW claims the Gran Coupe can swallow weekend luggage for four without recourse to folding the rear seats. Even with four up, longer items can be accommodated with the folding centre section. There's a Smart Open function offered which automatically opens and closes the tailgate if you wave your foot under the rear bumper although if you're so laden down that you can't open the tailgate, you probably don't want to be doing one-footed manoeuvres.

Market and Model

The 4 Series Gran Coupe trim line-up mirrors that of the Coupe, with Sport and M Sport trims, with pricing starting from around £36,000. Entry-level versions get leather heated seats, xenon headlamps, LED rear lights, a parking radar, as well as climate control, so although the prices are around £3,000 more expensive model-for-model than the 3 Series, you do get more gear. The xDrive 4WD system is an option for buyers of the 420i derivative. Satellite navigation is standard on most versions, but the adaptive dampers are a box you might want to tick on the options list, as well as the sport steering. We could take or leave the sports seats, but the stereo upgrade is worth giving a listening to. BMW will also tempt you with a range of Connected services, a head-up display and some neat driver aids but you'll need to keep an eye on the asking price. It's easily possible to spend around £41,000 on an M Sport 420i xDrive, add a few options and end up having spent nearly £45,000 on a four-cylinder, two-litre mid-sized hatch.

Cost of Ownership

Like all modern BMWs, the 4 Series Gran Coupe delivers some incredible efficiency figures. Once you've got over the upfront cost of the car, this means that actual day-to-day running costs will be on a par with far more humble tackle. Thank BMW's EfficientDynamics technology for that, this suite of measures resulting in ultra-competitive economy and emissions WLTP figures right across the board. Take the 430i for example; a petrol-engined performance model that can dip under six seconds to 60mph yet in auto form, still returns a fuel economy figure of 37.7mpg on the combined cycle and emissions of 171g/km. The real standout performer at present is the 420i, which in auto form manages to wring 38.2 miles from a gallon of petrol on the combined cycle and emits 169g/km. Even if you go for the range-topping 440i petrol version, you'll see 34.9mpg and 185g/km. Expect strong residuals which will continue to give mainstream car manufacturers something to fret over. Insurance ratings are also said to have been driven down by better repairability and improved security.


Once you've wrapped your brain around the BMW 4 Series Gran Coupe's reason for existence, there's a lot to like about it. Granted, there are many chassis derivatives spun off the basic 3 Series underpinnings and the 4 Series Gran Coupe is unashamedly niche, but if you need usable back seats but also want a sleek body style, this is about your best bet at the accessible end of the BMW range. The 4 Series Gran Coupe has muscled effectively in on the territory of the Audi A5 Sportback and has even poached some orders away from cars like the Mercedes CLA as well. We've recently had some models that seemed strange additions to the BMW range and the public have given them the cold shoulder. This one though, has more than enough talent to succeed.

  • Heated windscreen washer jets
  • Rain sensor including auto headlights activation
  • Windscreen with grey shadeband
  • Electric front windows with fingertip open/close + anti-trap facility
  • Green tinted heat protection glazing
  • Two speed adjustable intervals windscreen wipers

  • Variable torque distribution
  • Hill start assistant
  • Dynamic stability control + (DSC+)
  • Brake drying
  • Anti lock braking system (ABS) with brake assist
  • Front and rear ventilated brake disc
  • Brake energy regeneration
  • CBC - (Cornering brake control)
  • Dynamic Traction Control - DTC
  • Dynamic brake control
  • Automatic Stability Control (ASC)

  • Velour floor mats

  • Drive performance control with ECO PRO comfort + sport mode
  • Aluminium front suspension
  • Five link rear suspension

  • Front/rear park distance control (PDC)
  • BMW remote services

  • Automatic tailgate operation
  • Auto start-stop

  • On board computer - average speed, fuel consumption, outside temp display with acoustic warning, clock/date, service interval, odometer/trip meter
  • Condition based service
  • iDrive Controller with 8 favourite buttons
  • Control display - 6.5" colour display screen
  • Oil sensor for level and grade, warning by check control system
  • Personal Profile - automatic lock when driving away selectable
  • BMW Online services
  • Run flat indicator
  • BMW emergency call
  • BMW Teleservices
  • Optimum shift indicator
  • Lights on warning by audio warning signal when ignition is switched off
  • Instrument cluster with speedometer with mph readout, tachometer, fuel gauge and oil temperature gauge
  • Check Control warning system for monitoring of lights and door/luggage compartment open warning
  • Brake pad wear indicator in front and rear

  • Direction indicator, side repeaters, integrated in exterior mirrors
  • Body colour mirror caps
  • Automatic dimming rear view mirror
  • Heated, electrically adjustable exterior mirror aspheric on driver side, convex on passenger side

  • Sport instrument cluster with red highlight and chrono scale

  • VALVETRONIC engine management

  • DAB tuner

  • Lightweight engineering
  • Front and rear bumper system
  • Front air inlet with high gloss black finish
  • Metal front door sill finishers with neutral BMW designation
  • Dual, round and left exhaust tailpipes with dark chrome finisher
  • Trim designation deletion on front side panels of sport trim badge
  • Body colour rear bumper
  • BBody colour roof mouldings
  • Body colour door handles
  • Body colour front bumper
  • High gloss black rear bumper insert
  • Model designation
  • High gloss black air breather
  • Shark fin antenna
  • Visible VIN plate
  • Chrome kidney grille with extra wide black, high gloss black vertical slats

  • LED front fog lights
  • Dynamic brake lights
  • High level third brake light
  • Follow me home headlights
  • LED daytime running lights
  • LED eyebrow light
  • LED direction indicator lenses
  • LED tail lights with 3D L-shaped LED light design

  • Automatic air conditioning with two zone control

  • Air conditioning and radio control panel in high gloss black
  • Chrome centre console panel highlight
  • Front folding sliding armrest with storage compartment
  • Front and rear side armrests integrated into door trim
  • Bottle holders integrated into front door trim storage compartments
  • Reach + rake manual adjustable steering column
  • Storage compartment in rear centre console
  • Toolkit located in luggage compartment
  • Glove compartment
  • 4 grab handles
  • Leather gearknob and handbrake lever
  • Dakota leather upholstery
  • 12V sockets in front centre console and passenger footwell
  • Two front cup holders with a sliding lid
  • Load lashing eyes in luggage compartment
  • Rear coded belt buckles

  • Ambient lighting - switchable BMW classic orange/ cold white LED
  • Welcome lighting
  • Interior lighting, front centre over interior mirror and rear centre automatic interior light activation when door is opened

  • Extended lighting package - 4 Series Gran coupe
  • Technology package - 4 Series Sport
  • Non Smokers pack

  • Warning triangle and first aid kit
  • Twin horns
  • 3 point seatbelts on all seats
  • Pyrotechnically pre-tensioned front seatbelts
  • Front seatbelt force limiters
  • Side impact protection
  • Crash sensor activating central locking release, hazard warning lights
  • Battery safety cut-off
  • Seat belt security check for driver
  • Tyre pressure monitoring with three level warning strategy
  • Brake pretensioning
  • Airbag - Front driver and passenger, front and rear head, front side, curtain head protection, manual deactivation of front passenger airbag possible

  • Driver and front passenger seat heating
  • 2 Rear seat headrests
  • Rear child seat isofix attachment with passenger airbag deactivation
  • Front sports seats
  • Front head restraints

  • Central locking switch for all doors, fuel filler cap and luggage compartment
  • Start/stop button with Comfort Go keyless engine start and auto Start/stop deactivation button
  • Remote control integrated key with red inset
  • Alarm system (Thatcham 1) with electronic engine immobiliser

  • Sport automatic transmission with steering-wheel mounted gearshift paddles and launch control
  • Electronic differential lock

  • Sunvisors with vanity mirrors and ticket pocket

  • Reduced rolling resistance tyres
  • Run flat tyres

  • Noise Level dB(A): 66
  • CO: 0.151
  • HC: 0.04
  • NOx: 0.025
  • HC+NOx: N
  • Particles: 0.0003
  • CO2 (g/km): 141
  • Standard Euro Emissions: EURO 6
  • WLTP - CO2 (g/km) - Low: 242
  • WLTP - CO2 (g/km) - Medium: 176
  • WLTP - CO2 (g/km) - High: 152
  • WLTP - CO2 (g/km) - Extra High: 166
  • WLTP - CO2 (g/km) - Comb: 174
  • WLTP - CO2 (g/km) - Low - Min: 238
  • WLTP - CO2 (g/km) - Low - Max: 246
  • WLTP - CO2 (g/km) - Medium - Min: 171
  • WLTP - CO2 (g/km) - Medium - Max: 180
  • WLTP - CO2 (g/km) - High - Min: 147
  • WLTP - CO2 (g/km) - High - Max: 155
  • WLTP - CO2 (g/km) - Extra High - Min: 163
  • WLTP - CO2 (g/km) - Extra High - Max: 168
  • WLTP - CO2 (g/km) - Comb - Max: 177
  • WLTP - CO2 (g/km) - Comb - Min: 169

  • Engine Code: B48B20M0
  • Cylinders: 4
  • Cylinder Layout: IN-LINE
  • Number of Valves: 16
  • Camshaft: DOHC
  • Catalytic Convertor: True
  • Engine Layout: NORTH SOUTH
  • Compression Ratio: 11.0:1
  • Transmission: SEMI-AUTO
  • Gears: 8 SPEED
  • Cylinders - Bore (mm): 82
  • Cylinders - Stroke (mm): 94.6
  • CC: 1998

  • EC Directive 1999/100/EC Applies: False
  • EC Urban (mpg): 37.2
  • EC Extra Urban (mpg): 54.3
  • EC Combined (mpg): 46.3
  • WLTP - MPG - Low: 26.6
  • WLTP - MPG - Medium: 36.7
  • WLTP - MPG - High: 42.2
  • WLTP - MPG - Extra High: 38.7
  • WLTP - MPG - Comb: 37.2
  • WLTP - MPG - Low - Min: 27.2
  • WLTP - MPG - Low - Max: 26.2
  • WLTP - MPG - Medium - Min: 37.7
  • WLTP - MPG - Medium - Max: 35.8
  • WLTP - MPG - High - Min: 44.1
  • WLTP - MPG - High - Max: 41.5
  • WLTP - MPG - Extra High - Min: 39.8
  • WLTP - MPG - Extra High - Max: 38.2
  • WLTP - MPG - Comb - Min: 38.2
  • WLTP - MPG - Comb - Max: 36.2
  • WLTP - FC (l/100km) - Low: 10.6
  • WLTP - FC (l/100km) - Medium: 7.7
  • WLTP - FC (l/100km) - High: 6.7
  • WLTP - FC (l/100km) - Extra High: 7.3
  • WLTP - FC (l/100km) - Comb: 7.6
  • WLTP - FC (l/100km) - Low - Min: 10.4
  • WLTP - FC (l/100km) - Low - Max: 10.8
  • WLTP - FC (l/100km) - Medium - Min: 7.5
  • WLTP - FC (l/100km) - Medium - Max: 7.9
  • WLTP - FC (l/100km) - High - Min: 6.4
  • WLTP - FC (l/100km) - High - Max: 6.8
  • WLTP - FC (l/100km) - Extra High - Min: 7.1
  • WLTP - FC (l/100km) - Extra High - Max: 7.4
  • WLTP - FC (l/100km) - Comb - Min: 7.4
  • WLTP - FC (l/100km) - Comb - Max: 7.8

  • Generation Mark: 1
  • Alternative Fuel Qualifying: False
  • Did at least one aspect of this vehicle's safety give cause for concern?: False
  • Coin Series: Sport [Prof Media]
  • Coin Description: i
  • Standard manufacturers warranty - Years: 3
  • Standard manufacturers warranty - Mileage: 999999
  • Manufacturers Paintwork Guarantee - Years: 3
  • Manufacturers Corrosion Perforation Guarantee - Years: 6
  • Service Interval Mileage: 18000
  • Service Interval Frequency - Months: 24
  • NCAP Adult Occupant Protection %: N
  • NCAP Child Occupant Protection %: N
  • NCAP Pedestrian Protection %: N
  • NCAP Safety Assist %: N
  • NCAP Overall Rating - Effective February 09: N
  • Badge Power: 184
  • Badge Engine CC: 2.0
  • Vehicle Homologation Class: M1
  • Special Edition: False
  • Special Order: False
  • Based On ID: N
  • Insurance Group 1 - 50 Effective January 07: 30E

  • Engine Power - KW: 135
  • Engine Power - RPM: 5000
  • Engine Torque - LBS.FT: 199
  • Engine Torque - NM: 270
  • Engine Torque - RPM: 1350
  • Engine Power - BHP: 184
  • Engine Power - PS: True
  • 0 to 60 mph (secs): False
  • 0 to 62 mph (secs): 7.7
  • Top Speed: 146
  • Engine Torque - MKG: 27.5

  • Emissions Test Cycle: WLTP
  • RDE Certification Level: RDE 2

  • Tyre Size Front: 225/45 R18
  • Tyre Size Rear: 225/45 R18
  • Tyre Size Spare: RUN FLAT TYRES
  • Wheel Type: 18" ALLOY
  • Wheel Style: DOUBLE SPOKE STYLE 397
  • Alloys?: True
  • Space Saver?: False

  • Width (including mirrors): 2017
  • Height: 1389
  • Height (including roof rails): N
  • Length: 4640
  • Width: 1825
  • Wheelbase: 2810

  • Minimum Kerbweight: 1570
  • Gross Vehicle Weight: 2100
  • Fuel Tank Capacity (Litres): 60
  • Luggage Capacity (Seats Up): 480
  • No. of Seats: 5
  • Max. Towing Weight - Braked: 1600
  • Max. Towing Weight - Unbraked: 695
  • Max. Loading Weight: 530
  • Max. Roof Load: 75
  • Luggage Capacity (Seats Down): 1300
  • Turning Circle - Kerb to Kerb: 11.3

  • Sun protection glass: £320

  • Adaptive M Sport suspension: £750

  • Apple CarPlay preparation: £235

  • Park assist gap measurement and steering assist: £0
  • Active cruise control with stop and go: £0
  • Variable sport steering: £230
  • Lane change warning system with blind spot check: £0
  • Electric Power Steering (EPS) with Servotronic: Included
  • Cruise control with brake function: Included
  • Surround view system: £0
  • Reversing assist camera: £0
  • Driving assistant - camera based assist, Lane departure + forward collision warning, city collision mitigartion + preventive pedestrian pretection: £0

  • Electric folding exterior mirrors with anti-dazzle: £300

  • High gloss black interior trim with pearl chrome highlight trim finishers: Included
  • Brushed aluminium trim finishers with black high gloss highlight: £155

  • Online entertainment: £160
  • Harman/Kardon loudspeaker system: £675
  • BMW Professional radio with Single CD player + two-way six speakers + 4x25W loudspeaker system + MP3 playback capability: Included

  • High gloss black exterior trim: Included
  • Satin aluminium exterior trim: £155
  • Solid paint: Included
  • Metallic paint: £665
  • Electric glass sunroof: £0

  • High beam assistant: £0
  • Low and high beam LED headlights: Included
  • BMW icon adaptive LED headlights: £0

  • Steering wheel heating: £170
  • Rear seat centre armrest with two cupholders: Included
  • Anthracite headlining: £215
  • 3 spoke leather multifunction sports steering wheel with red stitching: Included
  • 3 spoke sports leather steering wheel with black stitching: £0
  • BMW Individual leather steering wheel - merino leather finished in fine grained black: £50

  • Extended storage pack - 4 Series Gran coupe: £0
  • Comfort package - 4 Series: £750
  • Premium package - 4 Series: £1,800
  • Driving assistant package - 4 Series: £1,200
  • Park assist package - 4 Series: £1,200
  • Visibility package - 4 Series: £495

  • Metallic - Mineral grey: £665
  • Metallic - Black sapphire: £665
  • Metallic - Mineral white: £665
  • Metallic - Glacier Silver: £665

  • Solid - Alpine white: £0

  • Rear seat heating: £280
  • 60/40 split folding rear seat: Included
  • Electric front seat adjustment with driver memory: £0
  • Electrically adjustable lumbar support for driver and front passenger: £265
  • Manual adjustment for driver and passenger seat: Included
  • 40:20:40 split folding rear seat and rear centre armrest with two cupholders: £170

  • Comfort access system with smart opener: £0

  • Electric towbar: £750

  • Dakota leather - Black with red highlight: £0
  • Dakota leather - Mocha: £0
  • Dakota leather - Ivory white: £0
  • Dakota leather - Black: £0
  • Dakota leather - Coral red with black highlight: £0
  • Dakota leather - Black with oyster highlight: £0

  • 19" Double spoke light alloy wheels in bicolour orbit grey with mixed tyres - style 407: £800
  • 18" Double spoke light alloy wheels in bicolour orbit grey - style 397: Included

Whilst every effort is made to verify and ensure the accuracy of the data, the information should only be used as a guide and no purchasing decision should be made without verification of the data from either the manufacturer or franchised dealer. Our offers may be on a different model year to that represented by this data and so specification may differ accordingly.

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