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2026 BMW M340 • Compare 55 used cars with valuation

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Carwow

2025

(2025) BMW M340 M Sport 374 HP

£45,090

Fair price

You save £1,410

MK15 0DQ Milton Keynes, Buckinghamshire

177 g CO2/km comb. - 374 HP (275 kW) - 7.8 Mpg

Carwow

2024

(2024) BMW M340 M Sport 374 HP

£44,775

Fair price

Estimated price £44,451

YO30 4WR York, North Yorkshire

177 g CO2/km comb. - 374 HP (275 kW) - 34.9 Mpg

Carwow Leasing

2025

(2025) BMW M340 M Sport 374 HP

£63,285

Fair price

Estimated price £62,533

S92RQ

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

Carwow Leasing

2025

(2025) BMW M340 M Sport 374 HP

£62,940

Fair price

Estimated price £62,136

S92RQ

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

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1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon 3.0

2026
2,500 miles
Trim level: M Sport
3.0L Petrol
Automatic
387 HP (284 kW)
CO2 emissions: 169 g CO2/km comb.
38.2 mpg
Details

Fair price

£51,400

Bmw.co.uk

PL6 8LD Longbridge, Devon

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-3%

1 / 2

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon - 2026

Jul 2026
6,500 miles
Trim level: M Sport
3.0L Electric/Petrol
Sedan
Automatic
387 HP (284 kW)
CO2 emissions: 162 g CO2/km comb.
Details

Fair price

£52,995

£54,995

Dealer

Bmw, Dumfriesshire

View the car

1 / 3

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon - 2026

Jul 2026
4,000 miles
Trim level: M Sport
3.0L Electric/Petrol
Sedan
Automatic
387 HP (284 kW)
CO2 emissions: 160 g CO2/km comb.
Details

Fair price

£51,995

Dealer

Bmw, Dumfriesshire

View the car

1 / 3

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
4,999 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
38.2 mpg
Details

Fair price

£56,999

Bmw.co.uk

CH1 4LS Chester, Cheshire

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Carwow Leasing

2025

(2025) BMW M340 M Sport 374 HP

£64,500

Fair price

Estimated price £62,931

NG72AX

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

Carwow

2026

(2026) BMW M340 M Sport 392 HP

£51,995

Good price

You save £2,305

TN2 3UE Kent, Kent

165 g CO2/km comb. - 392 HP (288 kW) - 37.2 Mpg

Carwow Leasing

2025

(2025) BMW M340 M Sport 374 HP

£62,300

Fair price

You save £1,000

B78 3HG Staffordshire, Staffordshire

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

Carwow

2025

(2025) BMW M340 M Sport 374 HP

£47,190

Good price

You save £2,210

HG3 1LG Pannal, North Yorkshire

177 g CO2/km comb. - 374 HP (275 kW) - 36.2 Mpg

1 / 4

Used (2026) BMW M340 M Sport 369 HP | Fair price

3 Series i xDrive Touring 3.0

2026
3,500 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
369 HP (271 kW)
CO2 emissions: 192 g CO2/km comb.
33.2 mpg
Details

Fair price

£58,985

Bmw.co.uk

L3 7HT Merseyside, Merseyside

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1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
2,613 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 167 g CO2/km comb.
38.2 mpg
Details

Fair price

£56,495

£56,995

Bmw.co.uk

G4 0HP Glasgow City, Glasgow

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1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon 3.0

2026
3,635 miles
Trim level: M Sport
3.0L Petrol
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
38.2 mpg
Details

Fair price

£51,990

Bmw.co.uk

BS10 7TU Patchway, Gloucestershire

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-8%

1 / 4

Used (2026) BMW M340 M Sport 369 HP | Fair price

3 Series i xDrive Touring 3.0

2026
10,000 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
369 HP (271 kW)
CO2 emissions: 192 g CO2/km comb.
33.2 mpg
Details

Fair price

£55,990

£61,000

Bmw.co.uk

BS10 7TU Patchway, Gloucestershire

View the car

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon 3.0

2026
2,500 miles
Trim level: M Sport
3.0L Petrol
Automatic
387 HP (284 kW)
CO2 emissions: 162 g CO2/km comb.
39.8 mpg
Details

Fair price

£51,450

£51,950

Bmw.co.uk

DE21 Derby, Derbyshire

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1 / 4

New (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
1,230 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 167 g CO2/km comb.
38.2 mpg
Details

Fair price

£57,495

Bmw.co.uk

CR0 4PB Beddington, London

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Featured deals

Carwow Leasing

2025

(2025) BMW M340 M Sport 374 HP

£60,902

Fair price

You save £1,198

RM30GX Leicester, London

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

Carwow

2025

(2025) BMW M340 M Sport 374 HP

£43,396

Good price

You save £3,204

YO304WR, North Yorkshire

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

Carwow

2025

(2025) BMW M340 M Sport 374 HP

£37,950

Fair price

Estimated price £37,854

GU11RD

177 g CO2/km comb. - 374 HP (275 kW) - 7.8 Mpg

Carwow

2024

(2024) BMW M340 Comfort Edition 340 HP

£39,256

Good price

You save £2,344

YO30 4WR York, North Yorkshire

159 g CO2/km comb. - 340 HP (250 kW) - 46.3 Mpg

-3%

1 / 4

Used (2026) BMW M340 M Sport 369 HP | Fair price

3 Series i xDrive Saloon 3.0

2026
7,010 miles
Trim level: M Sport
3.0L Petrol
Automatic
369 HP (271 kW)
CO2 emissions: 182 g CO2/km comb.
34.9 mpg
Details

Fair price

£52,000

£54,000

Bmw.co.uk

NP20 2DS Newport, Gwent

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1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
3,531 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 166 g CO2/km comb.
38.7 mpg
Details

Fair price

£55,995

Bmw.co.uk

FK7 7RZ Stirling, Stirling And Falkirk

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1 / 3

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon - 2026

Jun 2026
2,500 miles
Trim level: M Sport
3.0L Electric/Petrol
Sedan
Automatic
387 HP (284 kW)
CO2 emissions: 162 g CO2/km comb.
Details

Fair price

£53,990

Dealer

Bmw, Dumfriesshire

View the car

1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
2,653 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 174 g CO2/km comb.
36.7 mpg
Details

Fair price

£57,495

£57,995

Bmw.co.uk

KT6 5QQ Long Ditton, Surrey

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-3%

1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
5,336 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 167 g CO2/km comb.
38.7 mpg
Details

Fair price

£55,271

£57,271

Bmw.co.uk

TW8 9DD Greater London, London

View the car

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
4,938 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
38.2 mpg
Details

Fair price

£56,956

Bmw.co.uk

PR2 2YA Ashton-On-Ribble, Lancashire

View the car

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Saloon - 2026

Jun 2026
4,000 miles
Trim level: M Sport
3.0L Electric/Petrol
Sedan
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
Details

Fair price

£51,250

£47,995

Dealer

Bmw, Dumfriesshire

View the car

1 / 4

Used (2026) BMW M340 M Sport 387 HP | Fair price

3 Series i xDrive Touring 3.0

2026
1,743 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
38.2 mpg
Details

Fair price

£56,895

Bmw.co.uk

CR0 4PB Beddington, London

View the car

1 / 4

Used (2026) BMW M340 M Sport 387 HP | A bit pricey

3 Series i xDrive Touring 3.0

2026
3,000 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 167 g CO2/km comb.
38.7 mpg
Details

A bit pricey

£56,975

Bmw.co.uk

WD6 2BT Borehamwood, Hertfordshire

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1 / 4

Used (2026) BMW M340 M Sport 392 HP | A bit pricey

3 Series i xDrive Touring 3.0

2026
4,645 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
392 HP (288 kW)
CO2 emissions: 176 g CO2/km comb.
36.7 mpg
Details

A bit pricey

£58,990

Motors.co.uk

BB8 9NP Lancashire, Lancashire

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Featured deals

Carwow

2025

(2025) BMW M340 M Sport 374 HP

£39,145

Good price

You save £2,455

YO304WR, North Yorkshire

177 g CO2/km comb. - 374 HP (275 kW) - 7.8 Mpg

Carwow

2024

(2024) BMW M340 Comfort Edition 340 HP

£41,991

Super price

You save £4,709

PO3 5FF Portsmouth, Hampshire

159 g CO2/km comb. - 340 HP (250 kW) - 46.3 Mpg

Carwow

2024

(2024) BMW M340 340 HP

£38,999

Fair price

You save £601

GU11RD

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

Carwow

2024

(2024) BMW M340 Shadowline 340 HP

£37,495

Good price

You save £2,805

GU1 1RU Surrey, Surrey

159 g CO2/km comb. - 340 HP (250 kW) - 46.3 Mpg

1 / 2

Used (2026) BMW M340 M Sport 387 HP | A bit pricey

3 Series i xDrive Touring - 2026

Jul 2026
6,000 miles
Trim level: M Sport
3.0L Electric/Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 176 g CO2/km comb.
Details

A bit pricey

£58,990

£58,995

Dealer

Bmw, Dumfriesshire

View the car

-3%

1 / 4

Used (2026) BMW M340 M Sport 387 HP | A bit pricey

3 Series i xDrive Touring 3.0

2026
4,000 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 173 g CO2/km comb.
37.2 mpg
Details

A bit pricey

£57,711

£59,711

Bmw.co.uk

UB7 8JU Greater London, London

View the car

1 / 4

Used (2026) BMW M340 M Sport 387 HP | A bit pricey

3 Series i xDrive Touring 3.0

2026
7,920 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 174 g CO2/km comb.
36.7 mpg
Details

A bit pricey

£56,990

Bmw.co.uk

BS10 7TU Patchway, Gloucestershire

View the car

Used (2026) BMW M340 M Sport 387 HP | A bit pricey

3 Series i xDrive Touring 3.0

2026
4,000 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
387 HP (284 kW)
CO2 emissions: 168 g CO2/km comb.
38.2 mpg
Details

A bit pricey

£59,000

Bmw.co.uk

TW8 9DD Greater London, London

View the car

-1%

1 / 4

New (2026) BMW M340 M Sport 392 HP | Expensive

3 Series Touring 2026 i xDrive MHT

2026
1,000 miles
Trim level: M Sport
3.0L Petrol
Estate
Automatic
392 HP (288 kW)
CO2 emissions: 165 g CO2/km comb.
7.3 mpg
Details

Expensive

£58,581

£59,392

RH1 5EP Salfords, Surrey

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Availability verified

Featured deals

Carwow

2025

(2025) BMW M340 M Sport 374 HP

£37,817

Good price

You save £2,083

RH15EP

177 g CO2/km comb. - 374 HP (275 kW) - 7.8 Mpg

Carwow

2025

(2025) BMW M2 Comfort Edition 480 HP

£54,850

Fair price

Estimated price £53,317

DE214RZ Derby, Derbyshire

222 g CO2/km comb. - 480 HP (353 kW) - 28.8 Mpg

Carwow

2024

(2024) BMW M2 Comfort Edition 460 HP

£47,999

Fair price

Estimated price £47,616

LS12 6DL West Yorkshire, West Yorkshire

220 g CO2/km comb. - 460 HP (338 kW) - 29.1 Mpg

Carwow

2025

(2025) BMW M2 Comfort Edition 480 HP

£55,633

Good price

You save £2,367

TA6 6DD Somerset, Somerset

221 g CO2/km comb. - 480 HP (353 kW) - 29.1 Mpg

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