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BMW 420 (convertible) • 309 cars with Valuation

Market overview: BMW 420 (convertible). 309 for sale. Prices from £9,495. Is the price Good, Fair or Expensive? See the analysis for each car here.

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Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-5%
1 / 4

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

4 Series i M Sport 2dr Auto

  • 2020
  • 53,048 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 8
  • CO2: 182 g CO2/km comb.
  • Details
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Super price

£17,955
£18,980
BB13NU Blackburn,, Lancashire
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1 / 4

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

- 4 Series Convertible d [190]

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

Good price

£13,895
£13,995
BN69HZ, London
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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)
  • mpg: 6.8
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£30,350
£30,500
CM13BH Chelmsford, Essex
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1 / 4

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

- 4 Series Convertible i M Sport

  • 2025
  • 31,508 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 6.8
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£30,900
£31,150
CM13BH Chelmsford, Essex
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1 / 4

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

- 4 Series Convertible i M Sport

  • 2025
  • 13,601 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 6.8
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£31,771
£31,247
RG129FR, Berkshire
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Availability verified
-6%
1 / 3

Used (2021) BMW 420 M Sport 190 HP | Good price

4 Series d MHT M Sport 2dr Step

  • 2021
  • 30,439 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 4.9
  • CO2: 129 g CO2/km comb.
  • Details
autouncle-certified

Good price

£24,350
£26,150
WD33RT Watford, Hertfordshire
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Availability verified
-7%
1 / 3

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

- 4 Series Convertible i M Sport

  • 2020
  • 81,678 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 8
  • CO2: 182 g CO2/km comb.
  • Details
autouncle-certified

Super price

£11,995
£12,995
G513JH, Glasgow
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-17%
1 / 4

Used (2024) BMW 420 M Sport 184 HP | Super price

4 Series i M Sport Convertible 2.0

  • 2024
  • 11,312 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 38.2
  • CO2: 169 g CO2/km comb.
  • Details
autouncle-certified

Super price

£35,965
£43,500
PO35FF, Hampshire
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Availability verified
-9%
1 / 4

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

- 4 Series Convertible d [190] M

  • 2020
  • 52,255 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Super price

£14,550
£15,990
DE655FJ Hilton, Derbyshire
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Availability verified
-6%
1 / 4

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

4 Series d MHT M Sport 2dr Step

  • 2022
  • 21,200 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 4.9
  • CO2: 129 g CO2/km comb.
  • Details
autouncle-certified

Super price

£27,950
£30,000
RH123ZG, West Sussex
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Featured deals

-15%
1 / 4

Used (2024) BMW 420 M Sport 184 HP | Super price

4 Series i M Sport Convertible 2.0

  • 2024
  • 19,073 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 41.5
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£34,695
£41,183
PO35FF, Hampshire
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-5%
1 / 4

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

- 4 Series Convertible d [190] M

  • 2020
  • 36,219 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Good price

£17,495
£18,562
E65LU, London
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-6%
1 / 2

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

4 Series d [190] M Sport 2dr Auto

  • 2019
  • 59,731 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Good price

£14,995
£15,995
G696UL
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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
  • 113,173 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Super price

£9,995
HX14JF, West Yorkshire
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Availability verified
-2%
1 / 4

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

- 4 Series Convertible d [190] M

  • 2019
  • 69,000 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Good price

£14,730
£15,170
UB111FW, London
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1 / 4

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

- 4 Series Convertible i M Sport

  • 2025
  • 13,010 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 6.8
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£33,694
£33,993
SO533YU, Hampshire
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Availability verified
-9%
1 / 4

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

- 4 Series Convertible i M Sport

  • 2025
  • 23,282 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg: 6.8
  • CO2: 154 g CO2/km comb.
  • Details
autouncle-certified

Super price

£31,995
£35,490
CT27PX, Kent
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-6%
1 / 3

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

- 4 Series Convertible d [190] M

  • 2020
  • 50,000 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Super price

£13,950
£14,950
TN62GZ, East Sussex
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Availability verified
-2%
1 / 4

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

4 Series d [190] M Sport 2dr Auto

  • 2020
  • 56,000 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Super price

£18,495
£18,995
CM83NW, Essex
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1 / 3

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

- 4 Series Convertible d [190] M

  • 2020
  • 51,896 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • mpg: 5.9
  • CO2: 156 g CO2/km comb.
  • Details
autouncle-certified

Super price

£14,550
N111GN Barnet, London
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New
1 / 4

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

4 Series d [190] M Sport 2dr Auto

  • 2020
  • 30,335 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • Details
autouncle-certified

Good price

£19,399
£19,495
Dealer
RM13 9EB Rainham, London
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-6%
1 / 4

Used (2019) BMW 420 M Sport | Good price

4 Series d [190] M Sport 2dr Auto

  • 2019
  • 34,750 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • Details
autouncle-certified

Good price

£16,899
£17,990
Dealer
BL1 8DY Bolton, Manchester
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-15%
1 / 4

Used (2022) BMW 420 M Sport 187 HP | Good price

4 Series d M Sport Convertible 2.0

  • 2022
  • 18,789 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 187 HP (137 kW)
  • mpg: 54.3
  • CO2: 136 g CO2/km comb.
  • Details
autouncle-certified

Good price

£28,250
£33,454
Dealer
EN1 1SW Enfield, London
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Availability verified
-9%
1 / 4

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

4 Series Convertible i M Sport 2dr

  • 2022
  • 40,073 miles
  • Trim level: M Sport
  • 2.0L Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • Details
autouncle-certified

Good price

£26,191
£29,048
Dealer
LN6 3AG Lincoln, Lincolnshire
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Availability verified
-3%
1 / 4

Used (2018) BMW 420 M Sport 190 HP | Good price

4 Series 2.0 d M Sport Convertible

  • 2018
  • 79,479 miles
  • Trim level: M Sport
  • 2.0L Diesel
  • Cabriolet
  • Automatic
  • 190 HP (139 kW)
  • Details
autouncle-certified

Good price

£12,799
£13,249
Dealer
MK1 1BU Milton Keynes, Buckinghamshire
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Showing 1 - 25 of 302 results
autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive