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2019 BMW 420 • Compare 122 used cars with valuation

Average sales data

Avg. price

£15,638

Cars found

127

Depreciation

-

Avg. sale time

46 days

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Price checked by AutoUncle

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Carwow

Used BMW 420 Sport Line 190 HP (139 kW) 2019 Black Coupe
2019
(2019) BMW 420 Sport Line 190 HP
£15,690

Good price

You save £1,210
NE8 3HL Tyne And Wear, Tyne And Wear

156 g CO2/km comb. - 190 HP (139 kW) - 5.8 Mpg

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£17,502

Fair price

Estimated price £17,410
RH15EP

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2020 Cabriolet
2020
(2020) BMW 420 M Sport 184 HP
£13,440

Fair price

You save £260
E65LU

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2020 Black Cabriolet
2020
(2020) BMW 420 M Sport 184 HP
£19,499

Fair price

Estimated price £18,646
PE32 1DD Pott Row, Norfolk

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

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Featured deals

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Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2020 Coupe
2020
(2020) BMW 420 M Sport 184 HP
£16,950

Fair price

You save £950
WD3 3RT Croxley Green, Hertfordshire

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

Carwow

Used BMW 420 M Sport 190 HP (139 kW) 2019 Grey Coupe
2019
(2019) BMW 420 M Sport 190 HP
£16,605

Fair price

You save £695
RM13 8RH Greater London, London

149 g CO2/km comb. - 190 HP (139 kW) - 5.7 Mpg

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2020 Black Coupe
2020
(2020) BMW 420 M Sport 184 HP
£19,750

Fair price

Estimated price £19,645
DE21 7RW Spondon, Derbyshire

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

Carwow

Used BMW 420 M Sport 190 HP (139 kW) 2020 Coupe
2020
(2020) BMW 420 M Sport 190 HP
£13,990

Fair price

Estimated price £13,799
NE83HL

151 g CO2/km comb. - 190 HP (139 kW) - 5.8 Mpg

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Verified Dealers

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£16,999

Super price

You save £3,001
E65LU

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£13,480

Super price

You save £2,120
KY13NA

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£14,000

Super price

You save £2,400
ST59DX

170 g CO2/km comb. - 184 HP (135 kW) - 7.4 Mpg

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£14,998

Super price

You save £3,102
E65LU

178 g CO2/km comb. - 184 HP (135 kW) - 7.8 Mpg

Featured deals

Verified Dealers

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£19,663

Good price

You save £1,937
DH11HP

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£17,881

Good price

You save £2,319
E65LU

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

Carwow

Used BMW 420 M Sport 190 HP (139 kW) 2020 Cabriolet
2020
(2020) BMW 420 M Sport 190 HP
£17,495

Super price

You save £2,905
OL3 5PJ Diggle, Manchester

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

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£13,495

Super price

You save £2,505
OL10 4HQ Greater Manchester, Manchester

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

Featured deals

Verified Dealers

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£13,750

Good price

You save £1,850
M445AH

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

Carwow

Used BMW 420 M Sport 190 HP (139 kW) 2019 Blue Coupe
2019
(2019) BMW 420 M Sport 190 HP
£15,000

Fair price

Estimated price £14,962
G3 6ED Glasgow City, Glasgow

149 g CO2/km comb. - 190 HP (139 kW) - 5.7 Mpg

Carwow

Used BMW 420 M Sport 184 HP (135 kW) 2021 Coupe
2021
(2021) BMW 420 M Sport 184 HP
£17,052

Super price

You save £3,548
B63 3NS West Midlands, West Midlands

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

Carwow

Used BMW 420 M Sport 190 HP (139 kW) 2020 Coupe
2020
(2020) BMW 420 M Sport 190 HP
£15,995

Fair price

Estimated price £15,464
W1H 7AB Greater London, London

160 g CO2/km comb. - 190 HP (139 kW) - 6.1 Mpg

Showing 1 - 25 of 127 results

How much does a used BMW 420 cost? Prices, ratings and depreciation by model year

How much does a used BMW 420 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2025 BMW 420

£34,746 - £52,043£41,3455,000 miles-£2,50076

2026 BMW 420

£23,877 - £52,675£40,9302,800 miles-£3,960135

2024 BMW 420

£28,699 - £41,138£35,01213,500 miles-£4,22039

2023 BMW 420

£25,430 - £36,198£30,51320,900 miles-£1,28080

2022 BMW 420

£22,530 - £30,346£26,61332,700 miles-£2,140148

2021 BMW 420

£13,997 - £30,991£23,77644,700 miles-£2,340102

2020 BMW 420

£10,929 - £22,389£16,54657,800 miles-£1,46094

2019 BMW 420

£11,299 - £19,799£15,44462,400 miles-£1,360122

2018 BMW 420

£10,599 - £17,775£14,40465,500 miles-£560142

2017 BMW 420

£7,993 - £15,992£12,38175,200 miles-£1,060114

2016 BMW 420

£6,937 - £14,930£10,86486,000 miles-£1,100109

2015 BMW 420

£6,184 - £13,995£9,69691,600 miles-£1,46099

2014 BMW 420

£5,938 - £12,894£8,90697,000 miles-£74070

2013 BMW 420

£6,645 - £10,595£8,37389,100 miles-£74011

*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: 20 July 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.

Comparison of BMW 420 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

🏆 The most popular

BMW 420 M Sport

£8,339 - £46,322£22,44147,500 miles-£6801,194

BMW 420 Sport Line

£5,995 - £15,892£10,21979,600 miles-£1,40069
📈 The best value

BMW 420 Comfort Edition

£5,897 - £16,099£10,21984,500 miles-£30011

BMW 420 Luxury Line

£5,386 - £12,972£9,66179,000 miles-£48030
💰 The budget choice

BMW 420 Performance

£6,119 - £12,480£8,786110,000 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: 20 July 2026

Which variant should you choose?

💰 The budget choice

The Performance is the cheapest entry point with an average price of £8,786.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most M Sport for sale right now (1194), which gives you the most options to choose from.

📈 The best value

The Comfort Edition has held its price stable with minimal loss in value over the past year (-£300).

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

See BMW 420

Price Information

BMW 420

Price ratingAverage price

Super

£11,248

Good

£13,654

Fair

£15,423

Poor

£18,018

Bad

£19,504

Price valuation FAQs