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(petrol) BMW 420 used • 868 cars for sale

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BMW 420 - 4 Series Gran Coupe i M Sport 5dr Step Auto

£32,990

Super price

You save £5,210

CT27PX, Kent

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

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BMW 420 - 4 Series Convertible i M Sport 2dr Step Auto

£33,993

Super price

You save £4,307

SO533YU, Hampshire

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

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BMW 420 - 4 Series i M Sport Pro Edition 2dr Step Auto

£31,599

Fair price

Estimated price £30,961

EX28FD, Devon

151 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

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BMW 420 - 4 Series Convertible i M Sport 2dr Step Auto

£31,995

Super price

You save £6,105

CT27PX, Kent

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

-12%

1 / 4

Used (2018) BMW 420 M Sport 184 HP | Fair price

4 Series 2.0 i M Sport Convertible

2018
29,085 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
Details

Fair price

£15,950

£18,300

Dealer

DE65 5FJ Derby, Derbyshire

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-6%

1 / 4

Used (2021) BMW 420 M Sport | Fair price

4 SERIES GRAN COUPE i M Sport 5dr

2021
64,440 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
CO2: 154 g CO2/km comb.
Details

Fair price

£21,499

£22,999

Dealer

CW7 3AL Winsford, Cheshire

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-2%

1 / 4

Used (2017) BMW 420 M Sport | Fair price

4 SERIES GRAN COUPE i M Sport 5dr

2017
57,740 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
mpg: 48.7
CO2: 134 g CO2/km comb.
Details

Fair price

£14,099

£14,399

Dealer

M41 7TB Trafford Park, Manchester

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1 / 4

Used (2021) BMW 420 M Sport 180 HP | Fair price

4 Series i M Sport 2dr Step

2021
48,015 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
180 HP (132 kW)
Details

Fair price

£24,000

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1 / 2

Used (2022) BMW 420 M Sport 184 HP | Fair price

4 Series i M Sport 2dr Step

2022
29,560 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
Details

Fair price

£28,795

£28,995

Dealer

LE10 3DJ Hinckley, Leicestershire

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1 / 4

Used (2025) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Coupe 2.0

2025
7,908 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
181 HP (133 kW)
mpg: 44.1
CO2: 147 g CO2/km comb.
Details

Fair price

£38,499

Dealer

SK9 3PB Wilmslow, Cheshire

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1 / 3

Used (2021) BMW 420 M Sport | Fair price

4 Series i M Sport 2dr Step

2021
40,563 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
Details

Fair price

£24,650

Dealer

WD3 3RT Watford, Hertfordshire

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-1%

1 / 4

Used (2022) BMW 420 M Sport | Fair price

4 Series i M Sport 2dr Step

2022
36,451 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£25,999

£26,499

Dealer

ME7 1UB Gillingham, Kent

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1 / 4

Used (2023) BMW 420 M Sport | Fair price

4 Series i M Sport Convertible

2023
31,508 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
Details

Fair price

£31,050

£31,150

Dealer

CM1 3BH Chelmsford, Essex

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-5%

1 / 4

Used (2025) BMW 420 M Sport | Fair price

4 Series i M Sport 5dr Step

2025
8,347 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£36,995

£38,995

Dealer

BT12 6HU Belfast

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Featured deals

Carwow

BMW 420 - 4 Series Gran Coupe i M Sport 5dr Step Auto

£33,600

Super price

You save £4,600

BR67QR Kent, London

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

Carwow

BMW 420 4 Series i xDrive M Sport 2dr Step Auto

£25,295

Fair price

You save £205

S802QD Hinckley, Nottinghamshire

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

Carwow

BMW 420 - 4 Series Convertible i M Sport 2dr Step Auto

£30,500

Super price

You save £5,300

CM13BH Chelmsford, Essex

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

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BMW 420 - 4 Series Convertible i M Sport 2dr Step Auto

£31,050

Super price

You save £5,250

CM13BH Chelmsford, Essex

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

1 / 4

Used (2023) BMW 420 M Sport | Fair price

4 Series i M Sport 5dr Step

2023
21,944 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£29,995

Dealer

BT12 6HU Belfast

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1 / 4

Used (2025) BMW 420 M Sport | Fair price

4 Series i M Sport 5dr Step

2025
5,000 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£38,995

Dealer

BT12 6HU Belfast

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1 / 4

Used (2025) BMW 420 M Sport | Fair price

4 Series i M Sport 5dr Step

2025
9,235 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£38,995

Dealer

BT12 6HU Belfast

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-8%

1 / 4

Used (2019) BMW 420 M Sport 184 HP | Fair price

4 Series 2.0 i GPF M Sport Coupe

2019
27,579 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
Details

Fair price

£17,370

£18,940

Dealer

SK4 5EA Stockport, Manchester

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-1%

1 / 3

Used (2021) BMW 420 M Sport | Fair price

4 Series i M Sport 2dr Step

2021
46,603 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
Details

Fair price

£24,495

£24,745

Dealer

DE5 8LG Denby, Derbyshire

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-26%

1 / 4

Used (2022) BMW 420 M Sport 192 HP | Fair price

4 Series i xDrive M Sport Coupe

Dec 2022
21,607 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
192 HP (141 kW)
mpg: 41.5
CO2: 154 g CO2/km comb.
Details

Fair price

£28,399

£38,799

Dealer

CW1 6XH Crewe, Cheshire

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1 / 4

Used (2023) BMW 420 M Sport | Fair price

4 Series i M Sport Convertible

2023
36,531 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
Details

Fair price

£30,500

Dealer

CM1 3BH Chelmsford, Essex

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-1%

1 / 4

Used (2022) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Coupe 2.0

2022
10,025 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
181 HP (133 kW)
mpg: 42.2
CO2: 151 g CO2/km comb.
Details

Fair price

£30,490

£30,890

Dealer

WC1E 7DP London, London

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1 / 4

Used (2022) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Coupe 2.0

2022
23,243 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
181 HP (133 kW)
mpg: 44.1
CO2: 146 g CO2/km comb.
Details

Fair price

£27,790

£27,990

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-1%

1 / 4

Used (2015) BMW 420 M Sport 184 HP | Fair price

4 Series Gran Coupe i xDrive M

Mar 2015
64,291 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2: 152 g CO2/km comb.
Details

Fair price

£12,495

£12,650

Dealer

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Featured deals

Carwow

BMW 420 - 4 Series Convertible i M Sport 2dr Step Auto

£32,381

Super price

You save £5,819

RG129FR, Berkshire

154 g CO2/km comb. - 184 HP (135 kW) - 6.8 Mpg

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BMW 420 - 4 Series Gran Coupe i M Sport 5dr Step Auto

£43,955

Super price

You save £3,845

GU11RD Guildford, Surrey

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

Carwow

BMW 420 - 4 Series i M Sport 2dr Step Auto

£41,999

Super price

You save £5,801

B783HG Tamworth, Staffordshire

144 g CO2/km comb. - 184 HP (135 kW) - 6.3 Mpg

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BMW 420 - 4 Series Gran Coupe i M Sport 5dr Step Auto

£45,312

Good price

You save £2,488

RH101TN, West Sussex

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

-10%

1 / 4

Used (2023) BMW 420 M Sport 184 HP | Fair price

4 Series i M Sport 2dr Step Auto -

Sep 2023
11,222 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
mpg: 40.4
CO2: 154 g CO2/km comb.
Details

Fair price

£35,475

£39,750

Dealer

BN16 3FH Littlehampton, West Sussex

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-6%

1 / 4

Used (2022) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Convertible 2.0

2022
14,997 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
181 HP (133 kW)
mpg: 40.4
CO2: 160 g CO2/km comb.
Details

Fair price

£30,890

£32,990

Dealer

CT2 7PX Canterbury, Kent

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-3%

1 / 4

Used (2023) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Convertible 2.0

2023
12,100 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
181 HP (133 kW)
mpg: 40.4
CO2: 159 g CO2/km comb.
Details

Fair price

£34,795

£35,900

Dealer

HU9 1TQ Hull, East Yorkshire

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-1%

1 / 4

Used (2025) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Coupe 2.0

2025
3,993 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
181 HP (133 kW)
mpg: 43.5
CO2: 147 g CO2/km comb.
Details

Fair price

£40,499

£40,999

Dealer

CH1 4LS Chester, Cheshire

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-1%

1 / 4

Used (2023) BMW 420 M Sport 181 HP | Fair price

4 Series i M Sport Coupe 2.0

2023
47,394 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
181 HP (133 kW)
mpg: 42.2
CO2: 151 g CO2/km comb.
Details

Fair price

£27,699

£27,999

Dealer

CH1 4LS Chester, Cheshire

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BMW 420 - 4 Series Gran Coupe i M Sport 5dr Step Auto

£45,853

Good price

You save £1,947

TN23UE Nottingham, Kent

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

Carwow

BMW 420 4 Series i M Sport Convertible 2.0 2dr

£39,250

Fair price

You save £250

PO35FF, Hampshire

169 g CO2/km comb. - 184 HP (135 kW) - 38.2 Mpg

Carwow

BMW 420 4 Series Gran Coupe i M Sport 5dr Step Auto

£35,522

Super price

You save £5,378

PO35FF, Hampshire

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

Carwow

BMW 420 4 Series i M Sport Coupe 2.0 2dr

£37,490

Good price

You save £3,110

CT2 7PX Canterbury, Kent

146 g CO2/km comb. - 184 HP (135 kW) - 44.1 Mpg

Showing 276 - 300 of 843 results