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2026 BMW 420 • Compare 91 used cars with valuation

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2026

(2026) BMW 420 M Sport 184 HP

£44,700

Super price

You save £5,200

S92RQ

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

Carwow

2026

(2026) BMW 420 M Sport 184 HP

£36,950

Good price

You save £2,050

HA36AG

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£49,925

Fair price

Estimated price £48,610

HU9 1TQ Kingston Upon Hull, East Yorkshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£53,757

Fair price

You save £1,543

RH101TN

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

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-5%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
29,619 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£25,099

£26,449

Not evaluated

B6 5SU West Midlands, West Midlands

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Availability verified

-1%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
52,921 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£25,450

£25,759

Not evaluated

PO3 5FF Portsmouth, Hampshire

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Availability verified

-2%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
15,133 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£28,199

£29,049

Not evaluated

DE21 6BZ Derby, Derbyshire

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Availability verified

-4%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
14,941 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£23,360

£24,550

Not evaluated

LS270TS

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Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£49,039

Fair price

Estimated price £48,610

HG3 1LG Pannal, North Yorkshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£48,177

Fair price

You save £423

MK150DQ Milton Keynes, Buckinghamshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£49,370

Fair price

Estimated price £48,610

LS12 6EG West Yorkshire, West Yorkshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£47,000

Fair price

You save £1,600

S92RQ

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

-5%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
29,199 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£23,849

£25,349

Not evaluated

E4 7PX Greater London, London

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1 / 3

Used (2026) BMW 420 M Sport 184 HP

4 Series 2026 M Sport i 2dr Step

2026
46,138 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£22,967

Not evaluated

WS11 8XR Staffordshire, Staffordshire

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Availability verified

-3%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
26,200 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£24,850

£25,750

Not evaluated

N11 1GN Greater London, London

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New

1 / 1

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
38,591 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£29,750

Not evaluated

TN12 5HD East Peckham, Kent

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1 / 2

Used (2026) BMW 420 M Sport 184 HP

4 Series Convertible 2026 M Sport

2026
29,760 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 154 g CO2/km comb.
6.8 mpg
Details

£26,595

Not evaluated

LE10 3DJ Leicestershire, Leicestershire

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1 / 1

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Convertible i M Sport

2026
57,321 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 154 g CO2/km comb.
6.8 mpg
Details

£23,800

£24,000

Not evaluated

RM20 3NL Purfleet-On-Thames, Essex

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Carwow Leasing

2025

(2025) BMW 420 M Sport 184 HP

£47,267

Fair price

You save £1,333

IP31 1SX Fornham Saint Martin, Suffolk

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£48,223

Fair price

You save £377

DE21 Derby, Derbyshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£45,291

Good price

You save £3,309

RH101TN

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£49,839

Fair price

You save £61

LU48QN

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

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Convertible i M Sport

2026
39,650 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 154 g CO2/km comb.
6.8 mpg
Details

£28,006

£27,368

Not evaluated

OX44AT

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Availability verified

New

Used (2026) BMW 420 M Sport 184 HP

4 Series Convertible 2026 M Sport

2026
37,652 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 154 g CO2/km comb.
6.8 mpg
Details

£26,100

Not evaluated

WD3 3RT Croxley Green, Hertfordshire

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Availability verified

-3%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
17,290 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£29,095

£30,180

Not evaluated

YO304WR, North Yorkshire

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Availability verified

-2%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
749,100 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£35,751

£36,508

Not evaluated

RH15EP

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Availability verified

-18%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
18,938 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£28,555

£34,990

Not evaluated

TA66DD

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Availability verified

-6%

1 / 3

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
75,400 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£38,995

£41,495

Not evaluated

GU11RD

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Availability verified

-3%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
10,742 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£29,511

£30,538

Not evaluated

DH11HP

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Availability verified

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

2026
14,129 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£31,908

£31,243

Not evaluated

BA228RT

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1 / 3

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
53,553 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£25,975

Not evaluated

BL99ST

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Availability verified

-2%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
25,311 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£23,950

£24,500

Not evaluated

CM1 3BH Essex, Essex

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Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£47,514

Fair price

You save £1,086

PE21 7PQ Lincolnshire, Lincolnshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£47,085

Fair price

You save £1,515

DE21 Derby, Derbyshire

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£48,500

Fair price

You save £1,400

RM30GX

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£48,083

Fair price

You save £517

MK150DQ Milton Keynes, Buckinghamshire

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

-1%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
45,569 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£22,180

£22,420

Not evaluated

BB1 3NU Lancashire, Lancashire

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Availability verified

New

1 / 4

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
30,923 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£27,795

Not evaluated

TS183RB

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New

1 / 4

Used (2026) BMW 420 M Sport 184 HP

4 Series Gran Coupe 2026 M sport i

2026
79,042 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 153 g CO2/km comb.
6.6 mpg
Details

£20,744

Not evaluated

DE214SX, Derbyshire

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Availability verified

1 / 4

Used (2026) BMW 420 M Sport 184 HP

4 Series Convertible 2026 M Sport

2026
45,413 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 154 g CO2/km comb.
6.8 mpg
Details

£26,436

Not evaluated

NE360BQ

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Availability verified

-5%

1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

2026
28,620 miles
Trim level: M Sport
2.0L Petrol
Coupe
Automatic
184 HP (135 kW)
CO2 emissions: 144 g CO2/km comb.
6.3 mpg
Details

£25,990

£27,490

Not evaluated

CT27PX

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Availability verified

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Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£47,830

Fair price

You save £770

PE21 7PQ Lincolnshire, Lincolnshire

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

Carwow

2026

(2026) BMW 420 M Sport 184 HP

£39,917

Fair price

You save £1,183

BA22 8XG Somerset, Somerset

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£46,267

Good price

You save £2,333

RH101TN

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

Carwow Leasing

2026

(2026) BMW 420 M Sport 184 HP

£47,500

Good price

You save £2,400

S92RQ

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

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