-24%
1 /
4
Used (2015) BMW 420 M Sport | Super price
4 Series i M Sport 2dr [Profes
- 2015
- 103,000 miles
- Trim level: M Sport
- 2.0L Petrol
- Coupe
- Manual
- 37.2 mpg
- Details
Super price
£5,975
£7,895
Parkers.co.uk
UB7 7RU Yiewsley, London
BMW 420 in Hayes • 17 cars with AutoUncle Valuation
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Price checked by AutoUncle
Super price
Good price
Fair price
A bit pricey
Expensive
-6%
1 /
4
Used (2016) BMW 420 Advantage | Super price
4 Series i SE 2dr Auto [Business
- 2016
- 89,000 miles
- Trim level: Advantage
- 2.0L Petrol
- Coupe
- Automatic
- Details
Super price
£8,350
£8,950
Motors.co.uk
TW3 3TY Greater London, London
-2%
1 /
4
Used (2017) BMW 420 M Sport | Good price
4 Series d [190] M Sport 2dr Auto
- 2017
- 117,010 miles
- Trim level: M Sport
- 2.0L Diesel
- Coupe
- Automatic
- Details
Good price
£9,490
£9,690
Motors.co.uk
UB11 1FW Hayes, London
-2%
1 /
4
Used (2017) BMW 420 M Sport | Super price
4 Series d [190] xDrive M Sport
- 2017
- 50,511 miles
- Trim level: M Sport
- 2.0L Diesel
- Coupe
- Automatic
- Details
Super price
£11,695
£11,995
Motors.co.uk
HA1 4UD Greater London, London
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1 /
4
Used (2015) BMW 420 Luxury Line | Good price
4 Series i Luxury 5dr Auto
- 2015
- 72,000 miles
- Trim level: Luxury Line
- 2.0L Petrol
- Coupe
- Automatic
- Details
Good price
£9,980
Motors.co.uk
NW9 9RL Greater London, London
-3%
1 /
1
Used (2022) BMW 420 M Sport 181 HP | Fair price
4 Series i M Sport 2dr Step
- 2022
- 36,600 miles
- Trim level: M Sport
- 2.0L Petrol
- Cabriolet
- Automatic
- 181 HP (133 kW)
- 40.9 mpg
- Details
Fair price
£26,990
£27,990
Parkers.co.uk
HA8 7EE Greater London, London
1 /
4
Used (2020) BMW 420 M Sport | Fair price
4 Series i M Sport 5dr Auto
- 2020
- 72,000 miles
- Trim level: M Sport
- 2.0L Petrol
- Coupe
- Automatic
- Details
Fair price
£13,980
Motors.co.uk
NW9 9RL Greater London, London
-14%
1 /
4
Used (2018) BMW 420 M Sport 187 HP | Fair price
4 Series d M Sport Convertible 2.0
- 2018
- 45,676 miles
- Trim level: M Sport
- 2.0L Diesel
- Cabriolet
- Automatic
- 187 HP (137 kW)
- CO2 emissions: 132 g CO2/km comb.
- 44.8 mpg
- Details
Fair price
£17,771
£20,800
Bmw.co.uk
TW8 9DD Greater London, London
1 /
4
Used (2016) BMW 420 M Sport | Fair price
4 Series i M Sport 2dr [Profes
- 2016
- 52,000 miles
- Trim level: M Sport
- 2.0L Petrol
- Coupe
- Manual
- Details
Fair price
£11,495
Motors.co.uk
UB6 9LB Greater London, London
1 /
4
Used (2017) BMW 420 M Sport 190 HP | Fair price
4 Series Gran Coupe 2.0 d M Sport
- 2017
- 71,700 miles
- Trim level: M Sport
- 2.0L Diesel
- Coupe
- Automatic
- 190 HP (139 kW)
- Details
Fair price
£12,990
Motors.co.uk
UB7 8HY Greater London, London
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Verified Dealers
1 /
4
Used (2022) BMW 420 M Sport | A bit pricey
4 Series i M Sport Pro Edition 2dr
- 2022
- 60,000 miles
- Trim level: M Sport
- 2.0L Petrol
- Coupe
- Automatic
- 42.2 mpg
- Details
A bit pricey
£25,750
Motors.co.uk
HA0 3EN Greater London, London
-10%
1 /
4
Used (2025) BMW 420 M Sport 181 HP | A bit pricey
4 Series i M Sport Convertible 2.0
- 2025
- 4,300 miles
- Trim level: M Sport
- 2.0L Petrol
- Cabriolet
- Automatic
- 181 HP (133 kW)
- CO2 emissions: 169 g CO2/km comb.
- 38.2 mpg
- Details
A bit pricey
£42,700
£47,600
Bmw.co.uk
TW8 9DD Greater London, London
1 /
4
Used (2023) BMW 420 M Sport 181 HP | A bit pricey
4 Series i M Sport Convertible 2.0
- 2023
- 28,884 miles
- Trim level: M Sport
- 2.0L Petrol
- Cabriolet
- Automatic
- 181 HP (133 kW)
- CO2 emissions: 160 g CO2/km comb.
- 40.4 mpg
- Details
A bit pricey
£32,811
Bmw.co.uk
TW8 9DD Greater London, London
-28%
1 /
4
Used (2021) BMW 420 M Sport 181 HP | Expensive
i M Sport Pro Edition Converti
- Jul 2021
- 25,475 miles
- Trim level: M Sport
- 2.0L Petrol
- Cabriolet
- Automatic
- 181 HP (133 kW)
- CO2 emissions: 160 g CO2/km comb.
- 40.4 mpg
- Details
Expensive
£29,500
£40,995
Bmw.co.uk
TW8 9DD Greater London, London
-1%
1 /
3
Used (2022) BMW 420 M Sport | Expensive
4 Series i M Sport Pro Edition 5dr
- 2022
- 51,800 miles
- Trim level: M Sport
- 2.0L Petrol
- Coupe
- Automatic
- Details
Expensive
£27,490
£27,990
Motors.co.uk
HA8 7EE Greater London, London
Bmw.co.uk
TW8 9DD Greater London, London
-34%
1 /
4
Used (2020) BMW 420 M Sport 187 HP
d M Sport Coupe
- 2020
- 21,014 miles
- Trim level: M Sport
- 2.0L Diesel
- Coupe
- Automatic
- 187 HP (137 kW)
- CO2 emissions: 127 g CO2/km comb.
- 58.9 mpg
- Details
£27,811
£42,390
Not evaluated
Bmw.co.uk
TW8 9DD Greater London, London
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Showing 1 - 17 of 17 results
How much does a used BMW 420 cost? Prices, ratings and depreciation by model year
Model year | Price range* | Avg. Price | Median Mileage | Depreciation | Cars for sale |
|---|---|---|---|---|---|
2026 BMW 420 | £29,990 - £54,376 | £45,485 | 1,600 miles | -£420 | 91 |
2025 BMW 420 | £35,099 - £50,754 | £41,650 | 5,000 miles | -£1,940 | 85 |
2024 BMW 420 | £30,748 - £41,934 | £35,848 | 11,100 miles | -£4,040 | 37 |
2023 BMW 420 | £25,967 - £35,046 | £30,402 | 22,200 miles | -£2,440 | 78 |
2022 BMW 420 | £23,875 - £31,545 | £27,210 | 30,500 miles | -£1,880 | 129 |
2021 BMW 420 | £16,320 - £28,852 | £24,296 | 44,200 miles | -£1,520 | 111 |
2020 BMW 420 | £12,760 - £24,015 | £17,881 | 57,000 miles | -£1,200 | 60 |
2019 BMW 420 | £11,488 - £18,960 | £15,324 | 63,100 miles | -£1,020 | 97 |
2018 BMW 420 | £10,990 - £17,498 | £14,451 | 65,000 miles | -£400 | 149 |
2017 BMW 420 | £7,725 - £15,986 | £12,397 | 73,100 miles | -£920 | 123 |
2016 BMW 420 | £6,795 - £14,988 | £10,845 | 88,100 miles | -£880 | 98 |
2015 BMW 420 | £5,984 - £14,157 | £9,433 | 93,000 miles | -£960 | 90 |
2014 BMW 420 | £5,947 - £12,973 | £8,994 | 93,800 miles | -£580 | 71 |
2013 BMW 420 | £6,810 - £10,655 | £8,331 | 91,600 miles | -£1,000 | 10 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 30 June 2026
Comparison of BMW 420 variants and prices
Below you can compare prices and depreciation for the 5 most popular BMW 420 variants. The table is updated daily with data from the market in United Kingdom.
Variant | Price range* | Avg. Price | Median Mileage | Depreciation | Cars for sale |
|---|---|---|---|---|---|
🏆 The most popular BMW 420 M Sport | £8,295 - £46,561 | £22,720 | 47,900 miles | +£700 | 1,178 |
BMW 420 Comfort Edition | £5,897 - £23,025 | £11,947 | 81,000 miles | -£2,000 | 11 |
BMW 420 Sport Line | £5,995 - £16,147 | £10,630 | 76,000 miles | -£1,900 | 70 |
BMW 420 Luxury Line | £6,478 - £13,854 | £10,050 | 74,100 miles | -£640 | 32 |
💰 The budget choice BMW 420 Impressive | £4,289 - £10,130 | £7,128 | 111,000 miles | - | < 10 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 30 June 2026
Which variant should you choose?
💰 The budget choice
The Impressive is the cheapest entry point with an average price of £7,128.
Accuracy will improve as more cars from this variant become available
🏆 The most popular
There are the most M Sport for sale right now (1178), which gives you the most options to choose from.
📈 The best value
The M Sport has held its price stable with minimal loss in value over the past year (+£700).
Price checked by AutoUncle
Super price
Good price
Fair price
A bit pricey
Expensive
Used BMW 420 by area
- BMW 420 in Clapham Junction (107)
- BMW 420 in London (116)
See BMW 420
- BMW 420 (1000+)