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BMW 840 (M Sport) • 17 cars with analysis

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Used BMW 840 Comfort Edition 320 HP (235 kW) 2020 Blue Coupe
Comfort Edition
(2020) BMW 840 Comfort Edition 320 HP
£36,834

Fair price

Estimated price £35,702
WC1E 7DP Greater London, London

183 g CO2/km comb. - 320 HP (235 kW) - 39.2 Mpg

Carwow

Used BMW M4 Competition Edition 450 HP (330 kW) 2019 Grey Coupe
Competition Edition
(2019) BMW M4 Competition Edition 450 HP
£33,995

Fair price

You save £505
WC1E 7DP Greater London, London

228 g CO2/km comb. - 450 HP (330 kW) - 9.9 Mpg

Carwow

Used BMW M2 Competition Edition 431 HP (317 kW) 2019 Hockenheim silver metallic Coupe
Competition Edition
(2019) BMW M2 Competition Edition 431 HP
£33,737

Fair price

You save £963
WC1E 7DP Greater London, London

220 g CO2/km comb. - 431 HP (317 kW) - 29.0 Mpg

Carwow

Used Mercedes E53 AMG Premium Plus 435 HP (319 kW) 2019 White Coupe
Premium Plus
(2019) Mercedes E53 AMG Premium Plus 435 HP
£29,890

Fair price

Estimated price £29,731
UB11 1FW Hayes, London

211 g CO2/km comb. - 435 HP (319 kW) - 9.2 Mpg

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Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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Carwow

Used BMW M2 Shadowline 460 HP (338 kW) 2024 White Coupe
Shadowline
(2024) BMW M2 Shadowline 460 HP
£50,940

Good price

You save £1,960
WC1E 7DP Greater London, London

220 g CO2/km comb. - 460 HP (338 kW) - 29.0 Mpg

Carwow

Used BMW M340 M Sport 374 HP (275 kW) 2020 White Sedan
M Sport
(2020) BMW M340 M Sport 374 HP
£29,948

Super price

You save £3,252
WC1E 7DP Greater London, London

185 g CO2/km comb. - 374 HP (275 kW) - 8.0 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 Grey SUV
AMG line
(2022) Mercedes GLE400 AMG line 330 HP
£45,989

Good price

You save £2,411
UB7 0LW Harmondsworth, London

219 g CO2/km comb. - 330 HP (242 kW) - 8.0 Mpg

Carwow

Used Mercedes GLE400 AMG line 330 HP (242 kW) 2022 SUV
AMG line
(2022) Mercedes GLE400 AMG line 330 HP
£39,489

Super price

You save £3,511
UB7 0LW Harmondsworth, London

220 g CO2/km comb. - 330 HP (242 kW) - 8.4 Mpg

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Used BMW M340 Comfort Edition 340 HP (250 kW) 2021 White Sedan
Comfort Edition
(2021) BMW M340 Comfort Edition 340 HP
£25,630

Good price

You save £1,970
UB11 1FW Hayes, London

160 g CO2/km comb. - 340 HP (250 kW) - 6.1 Mpg

Carwow

Used Audi TT RS Sport 400 HP (294 kW) 2023 Coupe
Sport
(2023) Audi TT RS Sport 400 HP
£36,489

Good price

You save £3,111
UB7 0LW Harmondsworth, London

201 g CO2/km comb. - 400 HP (294 kW) - 8.9 Mpg

Carwow

Used Mercedes C43 AMG Premium 367 HP (269 kW) 2018 Blue Sedan
Premium
(2018) Mercedes C43 AMG Premium 367 HP
£23,000

Fair price

You save £1,000
WC1E 7DP Greater London, London

183 g CO2/km comb. - 367 HP (269 kW) - 8.0 Mpg

Carwow

Used BMW 320 M Sport 184 HP (135 kW) 2026 White Sedan
M Sport
(2026) BMW 320 M Sport 184 HP
£36,076

Fair price

Estimated price £35,301
WC1E 7DP Greater London, London

148 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

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Used BMW X5 M Sport 340 HP (250 kW) 2022 Black SUV
M Sport
(2022) BMW X5 M Sport 340 HP
£48,500

Super price

You save £5,500
WC1E 7DP Greater London, London

189 g CO2/km comb. - 340 HP (250 kW) - 39.2 Mpg

Carwow

Used BMW iX M Sport 384 kW (523 HP) 2024 Black SUV
M Sport
(2024) BMW iX M Sport 523 HP
£47,995

Fair price

You save £605
WC1E 7DP Greater London, London

0 g CO2/km comb. - 384 kW (523 HP) - 19.8 Kwh/100 km

Carwow

Used BMW X6 M Sport 286 HP (210 kW) 2021 Grey SUV
M Sport
(2021) BMW X6 M Sport 286 HP
£40,989

Fair price

Estimated price £40,850
UB7 0LW Harmondsworth, London

184 g CO2/km comb. - 286 HP (210 kW) - 6.6 Mpg

Carwow

Used BMW iX M Sport 239 kW (326 HP) 2022 White SUV
M Sport
(2022) BMW iX M Sport 326 HP
£34,513

Fair price

You save £287
WC1E 7DP Greater London, London

0 g CO2/km comb. - 239 kW (326 HP) - 19.4 Kwh/100 km

Showing 1 - 17 of 17 results

How much does a used BMW 840 cost? Prices, ratings and depreciation by model year

How much does a used BMW 840 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2025 BMW 840

£44,904 - £63,025£50,9734,100 miles-£19,06013

2024 BMW 840

£41,557 - £59,221£48,6569,300 miles-£26,02012

2023 BMW 840

£34,398 - £44,288£39,19823,700 miles-£6,60038

2022 BMW 840

£33,995 - £43,750£37,62328,700 miles-£3,52042

2021 BMW 840

£26,814 - £40,838£32,57645,900 miles-£2,56032

2020 BMW 840

£25,878 - £38,256£30,12653,700 miles-£2,02032

2019 BMW 840

£26,232 - £35,649£30,05351,000 miles-£2,48027

2018 BMW 840

£24,993 - £29,695£26,67776,700 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: 5 July 2026

Comparison of BMW 840 variants and prices

Below you can compare prices and depreciation for the 4 most popular BMW 840 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of BMW 840 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

🏆 The most popular

BMW 840 M Sport

£27,491 - £50,374£38,72424,400 miles-£8,000126
📈 The best value

BMW 840 Comfort Edition

£26,956 - £39,979£32,34944,500 miles-£1,90064

BMW 840 Luxury Line

£26,190 - £32,045£28,82582,200 miles-< 10
💰 The budget choice

BMW 840 Shadowline

£28,045 - £28,905£28,48056,000 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: 5 July 2026

Which variant should you choose?

💰 The budget choice

The Shadowline is the cheapest entry point with an average price of £28,480.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most M Sport for sale right now (126), 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 (-£1,900).

autouncle-certified

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

See BMW 840