BMW 420 (convertible) • 262 cars with Valuation

Market overview: BMW 420 (convertible). 262 for sale. Prices from £8,495. Is the price Good, Fair or Expensive? See the analysis for each car here.

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Carwow

Cabriolet

(2020) BMW 420 M Sport 190 HP

£14,512

Good price

You save £1,688

E65LU

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2020) BMW 420 M Sport 190 HP

£18,540

Good price

You save £2,260

RM13 8RH Greater London, London

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2020) BMW 420 M Sport 190 HP

£15,900

Super price

You save £4,000

RG75JF

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2020) BMW 420 M Sport 184 HP

£17,396

Good price

You save £1,904

E65LU

182 g CO2/km comb. - 184 HP (135 kW) - 8.0 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

New

1 / 4

Used (2022) BMW 420 M Sport 190 HP | Good price

- 4 Series Convertible d MHT M

2022
53,684 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 129 g CO2/km comb.
4.9 mpg
Details

Good price

£24,920

BB1 3NU Lancashire, Lancashire

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Availability verified

-2%

1 / 3

Used (2020) BMW 420 M Sport 184 HP | Good price

- 4 Series Convertible i M Sport

2020
30,717 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 182 g CO2/km comb.
8 mpg
Details

Good price

£17,396

£17,758

E65LU

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Availability verified

-5%

1 / 4

Used (2025) BMW 420 M Sport 184 HP | Super price

- 4 Series Convertible i M Sport

2025
36,531 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

Super price

£28,700

£30,500

CM1 3BH Essex, Essex

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Availability verified

-4%

1 / 3

Used (2020) BMW 420 M Sport 190 HP | Good price

- 4 Series Convertible d [190] M

2020
68,132 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 156 g CO2/km comb.
5.9 mpg
Details

Good price

£14,512

£15,130

E65LU

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Carwow

Cabriolet

(2020) BMW 420 M Sport 184 HP

£16,995

Super price

You save £3,005

S80 2QD Nottinghamshire, Nottinghamshire

182 g CO2/km comb. - 184 HP (135 kW) - 8.0 Mpg

Carwow

Cabriolet

(2020) BMW 420 M Sport 190 HP

£16,766

Super price

You save £2,434

E6 5LU Greater London, London

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2022) BMW 420 M Sport 190 HP

£24,920

Good price

You save £2,180

BB1 3NU Lancashire, Lancashire

129 g CO2/km comb. - 190 HP (139 kW) - 4.9 Mpg

Carwow

Cabriolet

(2020) BMW 420 M Sport 190 HP

£21,500

Fair price

You save £800

CM23 3LJ Hertfordshire, Hertfordshire

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

-3%

1 / 3

Used (2020) BMW 420 M Sport 190 HP | Good price

- 4 Series Convertible d [190] M

2020
52,487 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 156 g CO2/km comb.
5.9 mpg
Details

Good price

£18,540

£19,293

RM13 8RH Greater London, London

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Availability verified

-2%

1 / 3

Used (2020) BMW 420 M Sport 190 HP | Super price

- 4 Series Convertible d [190] M

2020
43,626 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 156 g CO2/km comb.
5.9 mpg
Details

Super price

£16,766

£17,273

E6 5LU Greater London, London

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1 / 1

New (2026) BMW 420 M Sport 184 HP | Good price

- 4 Series Convertible i M Sport

2026
0 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

Good price

£52,846

W1K 7TT Greater London, London

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Availability verified

1 / 2

Used (2020) BMW 420 M Sport 184 HP | Super price

- 4 Series Convertible i M Sport

2020
34,110 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
184 HP (135 kW)
CO2 emissions: 182 g CO2/km comb.
8 mpg
Details

Super price

£16,995

S80 2QD Nottinghamshire, Nottinghamshire

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Availability verified

1 / 4

Used (2020) BMW 420 M Sport 190 HP | Super price

- 4 Series Convertible d [190] M

2020
41,852 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 156 g CO2/km comb.
5.9 mpg
Details

Super price

£15,900

RG75JF

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Availability verified

-3%

1 / 4

Used (2020) BMW 420 Sport Line 190 HP | Super price

- 4 Series Convertible d [190]

2020
46,653 miles
Trim level: Sport Line
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 161 g CO2/km comb.
5.9 mpg
Details

Super price

£13,500

£13,995

W5 5JN Greater London, London

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Carwow

Cabriolet

(2020) BMW 420 Sport Line 190 HP

£13,500

Super price

You save £2,400

W5 5JN Greater London, London

161 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2019) BMW 420 M Sport 190 HP

£13,990

Fair price

You save £10

RM13 8RH Greater London, London

156 g CO2/km comb. - 190 HP (139 kW) - 5.9 Mpg

Carwow

Cabriolet

(2025) BMW 420 M Sport 184 HP

£28,700

Super price

You save £5,600

CM1 3BH Essex, Essex

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

Carwow

Cabriolet

(2014) BMW 420 Sport Line 184 HP

£5,995

Fair price

You save £105

OL96HT

124 g CO2/km comb. - 184 HP (135 kW) - 5.1 Mpg

New

1 / 4

Used (2020) BMW 420 M Sport | Super price

4 Series i M Sport 2dr Auto

2020
30,000 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
Details

Super price

£20,990

Motors.co.uk

RH12 3JP Rudgwick, West Sussex

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-6%

1 / 4

Used (2014) BMW 420 M Sport | Good price

4 Series d M Sport 2dr Auto

2014
102,000 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
Details

Good price

£7,495

£7,995

Motors.co.uk

SS8 0EQ Essex, Essex

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-15%

1 / 4

Used (2015) BMW 420 | Good price

4 Series d [190] SE 2dr Auto

2015
100,000 miles
2.0L Diesel
Cabriolet
Automatic
Details

Good price

£8,495

£9,995

Motors.co.uk

WV13 3RS West Midlands, West Midlands

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-5%

1 / 4

Used (2023) BMW 420 M Sport | Good price

4 Series i M Sport Convertible

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

Good price

£28,700

£30,500

Motors.co.uk

CM1 3BH Essex, Essex

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-4%

1 / 2

Used (2019) BMW 420 M Sport 190 HP | Good price

4 Series Convertible d [190] M

Sep 2019
84,121 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 156 g CO2/km comb.
Details

Good price

£13,650

£14,250

Honestjohn

WC1E 7DP Greater London, London

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-23%

1 / 4

Used (2020) BMW 420 M Sport 190 HP | Super price

4 Series d M Sport Convertible 2.0

Sep 2020
20,735 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 157 g CO2/km comb.
47.1 mpg
Details

Super price

£22,990

£30,000

Bmw.co.uk

W1K 7TT Greater London, London

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-2%

1 / 3

Used (2023) BMW 420 M Sport 187 HP | Good price

4 Series Convertible d MHT M Sport

2023
12,678 miles
Trim level: M Sport
2.0L Hybrid
Cabriolet
Automatic
187 HP (137 kW)
Details

Good price

£32,800

£33,700

Buyacar

Delivered to you

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-7%

1 / 4

Used (2017) BMW 420 Sport Line | Good price

4 Series d [190] Sport 2dr Auto

2017
76,300 miles
Trim level: Sport Line
2.0L Diesel
Cabriolet
Automatic
Details

Good price

£12,495

£13,495

Motors.co.uk

LL13 9YW Holt, Cheshire

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-31%

1 / 4

Used (2020) BMW 420 M Sport 190 HP | Super price

4 Series d M Sport Convertible 2.0

Mar 2020
49,843 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 132 g CO2/km comb.
44.8 mpg
Details

Super price

£18,746

£27,495

Bmw.co.uk

NE36 0BQ West Boldon, Tyne And Wear

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-25%

1 / 3

Used (2023) BMW 420 M Sport 190 HP | Good price

4 Series d M Sport Convertible 2.0

2023
12,678 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
190 HP (139 kW)
CO2 emissions: 136 g CO2/km comb.
54.3 mpg
Details

Good price

£32,800

£44,000

Bmw.co.uk

AB12 3EW Aberdeen, Aberdeen

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Carwow

Cabriolet

(2018) Mercedes C250 AMG line 204 HP

£15,300

Good price

You save £1,600

WD3 3RT Croxley Green, Hertfordshire

126 g CO2/km comb. - 204 HP (150 kW) - 4.9 Mpg

Carwow

Cabriolet

(2017) Mercedes C250 AMG line 204 HP

£18,995

Fair price

Estimated price £17,963

TN22 3QH East Sussex, East Sussex

126 g CO2/km comb. - 204 HP (150 kW) - 4.9 Mpg

Carwow

Cabriolet

(2017) Mercedes C250 AMG Line Premium Plus 204 HP

£15,495

Fair price

You save £405

WC1E 7DP Greater London, London

126 g CO2/km comb. - 204 HP (150 kW) - 58.0 Mpg

Carwow

Cabriolet

(2017) Mercedes C250 AMG Line Premium Plus 204 HP

£14,750

Fair price

Estimated price £14,341

OL9 6HT Greater Manchester, Manchester

126 g CO2/km comb. - 204 HP (150 kW) - 4.9 Mpg

-26%

1 / 4

Used (2023) BMW 420 M Sport 192 HP | Good price

4 Series i M Sport Convertible 2.0

2023
30,358 miles
Trim level: M Sport
2.0L Petrol
Cabriolet
Automatic
192 HP (141 kW)
CO2 emissions: 160 g CO2/km comb.
40.4 mpg
Details

Good price

£30,895

£41,998

Honestjohn

WC1E 7DP Greater London, London

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1 / 4

Used (2017) BMW 420 Sport Line | Good price

4 Series d [190] Sport 2dr Auto

2017
79,801 miles
Trim level: Sport Line
2.0L Diesel
Cabriolet
Automatic
Details

Good price

£11,489

Motors.co.uk

LU5 4JN Central Bedfordshire, Bedfordshire

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-10%

1 / 4

Used (2015) BMW 420 Luxury Line | Super price

4 Series 2.0 d Luxury Converti

2015
97,503 miles
Trim level: Luxury Line
2.0L Diesel
Cabriolet
Automatic
Details

Super price

£7,994

£8,950

Motors.co.uk

UB2 4HB Greater London, London

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1 / 4

Used (2015) BMW 420 M Sport | Super price

4 Series d [190] M Sport 2dr Auto

2015
84,580 miles
Trim level: M Sport
2.0L Diesel
Cabriolet
Automatic
Details

Super price

£8,990

Motors.co.uk

S9 3WD South Yorkshire, South Yorkshire

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-8%

1 / 4

Used (2014) BMW 420 Sport Line | Good price

4 Series d Sport 2dr Auto

2014
102,980 miles
Trim level: Sport Line
2.0L Diesel
Cabriolet
Automatic
Details

Good price

£7,795

£8,495

Motors.co.uk

CV10 9JD Warwickshire, Warwickshire

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Cabriolet

(2015) BMW 220 M Sport 184 HP

£10,990

Fair price

Estimated price £10,163

UB96LX

152 g CO2/km comb. - 184 HP (135 kW) - 6.4 Mpg

Carwow

Cabriolet

(2020) Mercedes E220 AMG Line Premium 194 HP

£18,299

Super price

You save £3,501

CW7 Cheshire West And Chester, Cheshire

170 g CO2/km comb. - 194 HP (142 kW) - 6.4 Mpg

Carwow

Cabriolet

(2017) Mercedes E250 AMG line 204 HP

£15,490

Fair price

You save £210

PE20 3JN Swineshead, Lincolnshire

114 g CO2/km comb. - 204 HP (150 kW) - 4.0 Mpg

Carwow

Cabriolet

(2020) Mercedes C200 AMG line 184 HP

£14,499

Good price

You save £1,401

PE134AX, Cambridgeshire

167 g CO2/km comb. - 184 HP (135 kW) - 7.3 Mpg

Showing 1 - 25 of 243 results

Price checked by AutoUncle

Super price

Good price

Fair price

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See BMW 420

BMW 420 (1000+)