MG MG3 (petrol) • 556 cars with Valuation

Market overview: Petrol MG MG3 (May-2026): There are currently 556 used petrol MG MG3 cars for sale. Prices range from £3,495 to £14,795, with a median price of £8,841. AutoUncle has identified 59 cars as being offered below market price. The typical selling time for a petrol MG MG3 is approximately 26 days, and 43.9% of the listings have recently been reduced in price (Source: AutoUncle market data, May-2026).

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Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2023 Black Hatchback

(2023) MG MG3 Exclusive 106 HP

Fair price

SW17 0HB Greater London, London

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Excite 106 HP

Fair price

CV4 9DU West Midlands, West Midlands

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2023 Black Hatchback

(2023) MG MG3 Excite 106 HP

Fair price

EN8 8DY Waltham Cross, Hertfordshire

147 g CO2/km comb. - 106 HP (77 kW) - 6.7 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Good price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

-2%

1 / 3

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
15,193 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,988

£9,209

SO31 7FL Lower Swanwick, Hampshire

Availability verified

1 / 3

Used (2018) MG MG3 106 HP | Super price

1.5 VTi-TECH 3Style+ 5dr [Start

2018
32,480 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 124 g CO2/km comb.
51.5 mpg
Details

Super price

£5,799

£5,699

CW7 Cheshire West And Chester, Cheshire

Availability verified

-5%

1 / 4

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
19,127 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,934

£9,482

SR82HR

Availability verified

-2%

1 / 4

Used (2024) MG MG3 Excite 106 HP | Good price

2024
37,662 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£7,649

£7,849

IP12DZ, Suffolk

Availability verified

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Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2023 Silver Hatchback

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £9,969

WD3 3RT Croxley Green, Hertfordshire

147 g CO2/km comb. - 106 HP (77 kW) - 6.7 Mpg

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Excite 106 HP

Good price

You save £1,105

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Excite 106 HP

Fair price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Good price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

-8%

1 / 4

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
31,480 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,384

£9,200

PE15XL

Availability verified

-10%

1 / 4

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
16,060 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£9,033

£10,100

S605BD

Availability verified

1 / 4

Used (2018) MG MG3 106 HP | Super price

2018
71,000 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 124 g CO2/km comb.
5.4 mpg
Details

Super price

£3,999

UB94DN

Availability verified

-11%

1 / 3

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
27,621 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£7,995

£8,995

NE12 9SW Longbenton, Tyne And Wear

Availability verified

-13%

1 / 3

Used (2024) MG MG3 Excite 106 HP | Super price

2024
37,779 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Super price

£6,495

£7,495

NE129SW

Availability verified

-6%

1 / 3

Used (2018) MG MG3 106 HP | Super price

2018
24,000 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 124 g CO2/km comb.
5.4 mpg
Details

Super price

£5,490

£5,850

UB94DN

Availability verified

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Verified Dealers

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

Estimated price £9,362

SN5 5QJ Swindon, Wiltshire

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

Estimated price £10,126

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Good price

You save £1,012

SO31 7FL Lower Swanwick, Hampshire

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2019 Red Hatchback

(2019) MG MG3 Exclusive 106 HP

Fair price

Estimated price £7,650

S70 5SZ Birdwell, South Yorkshire

152 g CO2/km comb. - 106 HP (77 kW) - 6.7 Mpg

-9%

1 / 4

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
16,840 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,999

£9,899

CW7 Cheshire West And Chester, Cheshire

Availability verified

-1%

1 / 4

Used (2024) MG MG3 Excite 106 HP | Super price

2024
21,600 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Super price

£7,850

£8,000

S81 7BQ Nottinghamshire, Nottinghamshire

Availability verified

1 / 2

Used (2024) MG MG3 Excite 106 HP | Good price

2024
20,390 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,495

LE10 3DJ Leicestershire, Leicestershire

Availability verified

1 / 4

Used (2018) MG MG3 106 HP | Good price

2018
33,000 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 124 g CO2/km comb.
5.4 mpg
Details

Good price

£5,988

EN92PA

Availability verified

1 / 4

Used (2020) MG MG3 Exclusive 106 HP | Good price

2020
68,000 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 152 g CO2/km comb.
6.6 mpg
Details

Good price

£5,500

UB94DN

Availability verified

-6%

1 / 4

New (2025) MG MG3 SE 116 HP | Good price

1.5 SE 5dr

Mar 2025
10 miles
Trim level: SE
1.5L Petrol
Hatchback
Manual
116 HP (85 kW)
CO2 emissions: 137 g CO2/km comb.
6.1 mpg
Details

Good price

£13,995

£14,995

DD2 4SU Dundee City Council, Dundee

Availability verified

-3%

1 / 1

Used (2024) MG MG3 Excite 106 HP | Good price

2024
34,112 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£7,995

£8,295

B980HX

Availability verified

-5%

1 / 4

Used (2024) MG MG3 Excite 106 HP | Good price

2024
21,500 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,450

£8,950

DE217RW

Availability verified

-3%

1 / 4

Used (2024) MG MG3 Exclusive 106 HP | Good price

2024
23,501 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£8,700

£9,000

PE15XL

Availability verified

New

Used (2024) MG MG3 Excite 106 HP | Good price

2024
51,320 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Good price

£7,299

PE321DD

Availability verified

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Verified Dealers

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2019 Silver Hatchback

(2019) MG MG3 Exclusive 106 HP

Fair price

Estimated price £8,169

DH3 2BQ Birtley, Durham

152 g CO2/km comb. - 106 HP (77 kW) - 6.6 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Good price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

CA3 0ET Cumberland, Cumbria

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

1 / 4

Used (2024) MG MG3 Excite 106 HP | Super price

2024
43,000 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Super price

£7,000

NP235SD

Availability verified

1 / 4

Used (2018) MG MG3 106 HP | Super price

2018
47,741 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
51 mpg
Details

Super price

£4,620

£4,495

Motors.co.uk

PE14 0RG Cambridgeshire, Cambridgeshire

-9%

1 / 4

Used (2018) MG MG3 106 HP | Super price

2018
30,000 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
51 mpg
Details

Super price

£4,950

£5,450

Parkers.co.uk

CM5 9NW High Ongar, Essex

1 / 4

New (2026) MG MG3 SE 116 HP | Good price

2026
50 miles
Trim level: SE
1.5L Petrol
Hatchback
Manual
116 HP (85 kW)
CO2 emissions: 137 g CO2/km comb.
6.1 mpg
Details

Good price

£13,595

£13,495

Motors.co.uk

HG2 7AB North Yorkshire, North Yorkshire

-22%

1 / 2

Used (2023) MG MG3 Exclusive 106 HP | Good price

1.5 VTi-TECH Exclusive 5dr

Nov 2023
6,746 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 140 g CO2/km comb.
6.7 mpg
Details

Good price

£8,490

£10,990

Buyacar

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Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Black Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

CM1 2UP Essex, Essex

137 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Exclusive 106 HP

Fair price

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2024 Hatchback

(2024) MG MG3 Excite 106 HP

Good price

You save £1,251

IP12DZ, Suffolk

147 g CO2/km comb. - 106 HP (77 kW) - 6.5 Mpg

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2023 Silver Hatchback

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £9,258

WC1E 7DP Greater London, London

147 g CO2/km comb. - 106 HP (77 kW) - 43.0 Mpg

Showing 1 - 25 of 554 results

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