2025 MG MG3 1.5 SE

Overview

• Make: MG
• Model: MG3
• Trim: SE
• Version: 1.5 SE Manual FWD Euro 6 (s/s) 5dr (113 bhp)
• Year: 2025
• Mileage: 4,000 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 113 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 MG MG3 SE has covered 4,000 miles, around 3,500 fewer miles than is typical for its age. The AskCar estimate for this car is £13,360. It is priced at £12,999, which is £361 below that estimate. The AskCar estimate uses 1,838 UK dealer adverts for the MG MG3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 63 days ago. Its asking price has since fallen by £1,400. The seller is Birchwood MG Eastbourne, based in Eastbourne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £361 (2%) under the AskCar estimate of £13,360.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,838 priced MG MG3 adverts across different ages and specifications, as of 12 November 2026.

A 2025 MG MG3 with the 1.5 petrol engine is typically advertised at £15,000: the median of the 333 for sale on AskCar, as of 12 November 2026.

Time on sale

This 2025 MG MG3 has been on sale for at least 63 days.

Price history

AskCar first saw this advert on 10 September 2026 at £14,399. Its asking price is now £12,999, £1,400 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 10 September 2026: £14,399
• 18 September 2026: £13,999
• 25 September 2026: £13,750
• 9 October 2026: £13,499
• 12 October 2026: £13,299
• 24 October 2026: £13,199
• 30 October 2026: £12,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,500 miles lower than the median mileage of a 2025 MG MG3 on AskCar.

Similar cars

62 other 2025 MG MG3 SE 1.5 petrol manual hatchbacks are for sale at UK dealers, from £11,991 to £16,795, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2025 MG MG3 SE, 1.5 petrol hatchback, blue. Mileage: 3,946 miles. Price: £12,998, the same price as this car. Dealer: Arnold Clark Birtley Motorstore / MG / Vanstore in Birtley. AskCar page: https://askcar.co.uk/car/mg-mg3-2025-8d3698d29745
• 2025 MG MG3 SE, 1.5 petrol hatchback, silver. Mileage: 3,937 miles. Price: £12,900, £99 less than this car. Dealer: Evans Halshaw Ford Merthyr Tydfil in Merthyr Tydfil. AskCar page: https://askcar.co.uk/car/mg-mg3-2025-8b7ae9f05138
• 2025 MG MG3 SE, 1.5 petrol hatchback, blue. Mileage: 3,889 miles. Price: £13,495, £496 more than this car. Dealer: Taylors Select Boston in Boston. AskCar page: https://askcar.co.uk/car/mg-mg3-2025-ac6eb5897334

• The nearest: 2025 MG MG3 SE, 1.5 petrol hatchback, black, 50 miles from this car. Mileage: 2,800 miles. Price: £13,690, £691 more than this car. Dealer: Richmond Motor Group Guildford Hyundai in Guildford. AskCar page: https://askcar.co.uk/car/mg-mg3-2025-2c8da2b57e25