Sort

MG MG3 (petrol) • 644 cars with Valuation

Market overview: Petrol MG MG3 (October-2026): There are currently 644 used petrol MG MG3 cars for sale. Prices range from £6,722 to £17,995, with a median price of £9,979. AutoUncle has identified 59 cars as being offered below market price. The typical selling time for a petrol MG MG3 is approximately 19 days, and 32.8% of the listings have recently been reduced in price (Source: AutoUncle market data, October-2026).

Featured deals

Become a verified dealer

Sandicliffe.co.uk

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

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £10,312

NG7 2SZ Nottingham, Nottinghamshire

140 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

DD2 4SU Dundee City Council, Dundee

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

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2022 White Hatchback

(2022) MG MG3 Exclusive 106 HP

Good price

MK44 3BH Bedford, Bedfordshire

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 £9,246

TS18 3RW Stockton-On-Tees, Durham

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

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

Sort

-2%

1 / 4

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

Mg3 1.5 SE 5dr Hatchback

May 2025
20,560 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

£11,675

£11,990

LN2 4LD Lincolnshire, Lincolnshire

Availability verified

-7%

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

Mg3 1.5 SE 5dr Hatchback

Mar 2026
13 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

£13,390

£14,490

NG7 2SZ Nottingham, Nottinghamshire

Availability verified

1 / 4

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

Mg3 1.5 SE 5dr Hatchback

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

Good price

£13,390

£13,494

NG7 2SZ Nottingham, Nottinghamshire

Availability verified

-7%

1 / 4

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

Mg3 1.5 SE 5dr Hatchback

Mar 2026
11 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

£13,390

£14,490

LN2 4LD Lincolnshire, Lincolnshire

Availability verified

Featured deals

Carwow

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

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £9,527

DH3 2BQ Birtley, Tyne And Wear

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

Carwow

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

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £9,836

DA1 4BH Greater London, London

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

Carwow

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

(2023) MG MG3 Exclusive 106 HP

Fair price

Estimated price £8,248

CM7 2QN Essex, Essex

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

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2022 Blue Hatchback

(2022) MG MG3 Exclusive 106 HP

Fair price

BL9 6HH Greater Manchester, Manchester

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

New

1 / 4

Used (2019) MG MG3 Exclusive 106 HP | Super price

2019
75,033 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 152 g CO2/km comb.
6.6 mpg
Details

Super price

£3,999

G73 1NP Rutherglen, Lanarkshire

Availability verified

-2%

1 / 1

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

2026
8,931 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

£12,695

£12,995

B980HX

Availability verified

-5%

1 / 4

Used (2022) MG MG3 Exclusive 106 HP | Good price

2022
20,475 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

£7,990

£8,490

MK44 3BH Bedford, Bedfordshire

Availability verified

1 / 1

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

2024
8,500 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

£8,495

CM72QN

Availability verified

New

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

2024
37,100 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

BL96HH

Availability verified

New

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

2024
22,677 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.5 mpg
Details

Super price

£7,252

GU15 2QW Surrey, Surrey

Availability verified

Featured deals

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2022 Black Hatchback

(2022) MG MG3 Exclusive 106 HP

Fair price

Estimated price £8,489

SS15 6RW Essex, Essex

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

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2020 White Hatchback

(2020) MG MG3 Exclusive 106 HP

Fair price

Estimated price £7,506

PE32 1DD Pott Row, Norfolk

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

Fair price

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

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2020 Blue Hatchback

(2020) MG MG3 Excite 106 HP

Fair price

BL9 6HH Greater Manchester, Manchester

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

New

1 / 1

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

1.5 SE 5dr

2025
4,500 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

£12,060

Dealer

London, London

New

1 / 1

Used (2024) MG MG3 Exclusive | Good price

1.5 VTi-TECH Exclusive 5dr

2024
17,908 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
CO2 emissions: 137 g CO2/km comb.
Details

Good price

£9,370

Dealer

London, London

New

1 / 1

Used (2022) MG MG3 Exclusive 106 HP | Good price

1.5 VTi-TECH Exclusive Nav Euro 6

2022
29,025 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

£7,556

Dealer

London, London

New

1 / 1

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

1.5 SE Euro 6 (s/s) 5dr

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

£13,928

Dealer

London, London

New

1 / 1

Used (2015) MG MG3 106 HP | Good price

1.5 VTi-TECH 3Style 5dr

2015
67,000 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 136 g CO2/km comb.
5.8 mpg
Details

Good price

£1,995

Dealer

London, London

New

1 / 1

New (2026) MG MG3 SE 115 HP | Good price

1.5 SE Hatchback 5dr Petrol Manual

2026
10 miles
Trim level: SE
1.5L Petrol
Hatchback
Manual
115 HP (84 kW)
CO2 emissions: 137 g CO2/km comb.
6.1 mpg
Details

Good price

£13,495

Dealer

London, London

New

1 / 1

Used (2026) MG MG3 SE 115 HP | Good price

1.5 SE Hatchback 5dr Petrol Manual

2026
2,000 miles
Trim level: SE
1.5L Petrol
Hatchback
Manual
115 HP (84 kW)
CO2 emissions: 137 g CO2/km comb.
6.1 mpg
Details

Good price

£12,995

Dealer

London, London

New

1 / 1

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

1.5 VTi-TECH Exclusive Nav

2020
50,536 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

£5,999

Dealer

London, London

New

1 / 1

Used (2026) MG MG3 SE 115 HP | Good price

1.5 SE Hatchback 5dr Petrol Manual

2026
2,000 miles
Trim level: SE
1.5L Petrol
Hatchback
Manual
115 HP (84 kW)
CO2 emissions: 137 g CO2/km comb.
6.1 mpg
Details

Good price

£12,995

Dealer

London, London

New

1 / 1

Used (2024) MG MG3 Excite | Super price

1.5 VTi-TECH Excite 5dr Petrol

2024
16,858 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
CO2 emissions: 137 g CO2/km comb.
Details

Super price

£8,649

Dealer

London, London

Featured deals

Carwow

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

(2024) MG MG3 Exclusive 106 HP

Fair price

ST3 7PG Rough Close, Staffordshire

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

Carwow

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

(2023) MG MG3 Exclusive 106 HP

Fair price

PE22 0JN Butterwick, Lincolnshire

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

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2020 Red Hatchback

(2020) MG MG3 Excite 106 HP

Fair price

WA15 8SX Hale Barns, Manchester

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

Carwow

Used MG MG3 Excite 106 HP (77 kW) 2022 Silver Hatchback

(2022) MG MG3 Excite 106 HP

Fair price

BL9 6HH Greater Manchester, Manchester

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

New

1 / 1

Used (2018) MG MG3 106 HP | Super price

1.5 VTi-TECH 3Form Sport 5dr

2018
19,378 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
Details

Super price

£5,800

Dealer

London, London

New

1 / 1

Used (2020) MG MG3 Excite 106 HP | Super price

1.5 VTi-TECH Excite 5dr

2020
44,270 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 140 g CO2/km comb.
6.7 mpg
Details

Super price

£4,499

Dealer

London, London

New

1 / 1

Used (2022) MG MG3 Exclusive 106 HP | Good price

1.5 VTi-TECH Exclusive Nav

2022
27,071 miles
Trim level: Exclusive
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 147 g CO2/km comb.
6.7 mpg
Details

Good price

£7,861

Dealer

London, London

New

1 / 1

Used (2022) MG MG3 Excite 106 HP | Good price

1.5 VTi-TECH Excite 5dr

2022
23,128 miles
Trim level: Excite
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
CO2 emissions: 140 g CO2/km comb.
6.7 mpg
Details

Good price

£7,499

Dealer

London, London

New

1 / 1

Used (2018) MG MG3 106 HP | Good price

1.5 VTi-TECH 3Style+ 5dr [Start

2018
39,729 miles
1.5L Petrol
Hatchback
Manual
106 HP (77 kW)
Details

Good price

£5,500

Dealer

LE4 5QZ Leicester, Leicestershire

Featured deals

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2020 White Hatchback

(2020) MG MG3 Exclusive 106 HP

Fair price

LE10 3DJ Leicestershire, Leicestershire

152 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

Fair price

Estimated price £9,136

DD2 4SU Dundee City Council, Dundee

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

Carwow

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

(2024) MG MG3 Exclusive 106 HP

Fair price

BB9 7DU Lancashire, Lancashire

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

Carwow

Used MG MG3 Exclusive 106 HP (77 kW) 2022 Black Hatchback

(2022) MG MG3 Exclusive 106 HP

Fair price

RM13 9YH Greater London, London

147 g CO2/km comb. - 106 HP (77 kW) - 43.3 Mpg

Showing 1 - 25 of 645 results

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

See MG MG3

MG MG3 (1000+)