2026 BMW 420 • Compare 38 used cars with valuation

Market overviewFebruary Price Analysis: A used BMW 420 from 2026 currently costs between £23,699 and £54,398. On average, the mileage for this year stands at 15,267 miles. The depreciation and price trend over the last 12 months is £0.

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Expensive

1 / 4

Used (2026) BMW 420 M Sport 180 HP | Fair price

4 Series i M Sport 2dr Step

  • 2026
  • 3,243 miles
  • Trim levelM Sport
  • 2.0L Petrol
  • Coupe
  • Automatic
  • 180 HP (132 kW)
  • Details
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Fair price

£42,990
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1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 37,290 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£24,199
Not evaluated
WF105HX Castleford, West Yorkshire
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Availability verified
-7%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Convertible i M Sport

  • 2026
  • 34,606 miles
  • Trim levelM Sport
  • Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg6.8
  • CO2154 g CO2/km comb.
  • Details
£24,899
£26,999
Not evaluated
BB126EH Burnley, Lancashire
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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
  • 24,499 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£24,699
£25,549
Not evaluated
EH151BT
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Availability verified
New
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 19,074 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£29,164
£29,315
Not evaluated
TS183RB, Durham
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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
  • 33,891 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£25,649
£26,249
Not evaluated
G329QA
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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
  • 48,437 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£23,699
£24,249
Not evaluated
DH32BQ Birtley, Durham
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Availability verified
-6%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 30,943 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£25,449
£27,199
Not evaluated
PO29RN, Hampshire
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Availability verified
-1%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Convertible i M Sport

  • 2026
  • 6,938 miles
  • Trim levelM Sport
  • Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg6.8
  • CO2154 g CO2/km comb.
  • Details
£35,990
£36,490
Not evaluated
CT27PX, Kent
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Availability verified
-6%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 18,362 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£29,494
£31,490
Not evaluated
SO533YU, Hampshire
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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
  • 41,698 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£22,800
£24,000
Not evaluated
ME59QG, Kent
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Availability verified
-14%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 4,592 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£34,791
£40,522
Not evaluated
BA228RT, Somerset
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Availability verified
-5%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 42,142 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£27,700
£29,300
Not evaluated
SW170HB, London
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Availability verified
New
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 21,994 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£27,197
Not evaluated
HU130EG Hessle, East Yorkshire
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Availability verified
-1%
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 41,752 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£27,197
£27,697
Not evaluated
PR22DF Preston, Lancashire
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 10 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£47,282
Not evaluated
RH101TN, West Sussex
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Availability verified
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Convertible i M Sport

  • 2026
  • 12,799 miles
  • Trim levelM Sport
  • Petrol
  • Cabriolet
  • Automatic
  • 184 HP (135 kW)
  • mpg6.8
  • CO2154 g CO2/km comb.
  • Details
£34,094
£33,009
Not evaluated
DH11HP, Durham
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£51,148
Not evaluated
DE214RZ Nottingham, Derbyshire
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Availability verified
1 / 3

Used (2026) BMW 420 M Sport 184 HP

- 4 Series i M Sport 2dr Step

  • 2026
  • 27,172 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.3
  • CO2144 g CO2/km comb.
  • Details
£24,200
Not evaluated
WD33RT Watford, Hertfordshire
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Availability verified
1 / 4

Used (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 20,920 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£28,245
£27,000
Not evaluated
B57AZ, West Midlands
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£54,398
Not evaluated
ME207XB Nottingham, Kent
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£50,423
Not evaluated
IP311SX Nottingham, Suffolk
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£49,348
Not evaluated
DE214RZ Nottingham, Derbyshire
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£48,473
Not evaluated
LS126EG Nottingham, West Yorkshire
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Availability verified

New (2026) BMW 420 M Sport 184 HP

- 4 Series Gran Coupe i M Sport

  • 2026
  • 0 miles
  • Trim levelM Sport
  • Petrol
  • Coupe
  • Automatic
  • 184 HP (135 kW)
  • mpg6.6
  • CO2153 g CO2/km comb.
  • Details
£47,448
Not evaluated
TN23UE Nottingham, Kent
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Availability verified
Showing 1 - 25 of 38 results
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