2021 MG MG3 1.5 VTi-TECH Exclusive NAV

Overview

• Make: MG
• Model: MG3
• Trim: Exclusive NAV
• Version: 1.5 VTi Tech Exclusive NAV Manual FWD Euro 6 (s/s) 5dr (105 bhp)
• Year: 2021
• Mileage: 29,154 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 105 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 147 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 MG MG3 Exclusive Nav is advertised with 29,154 miles on the clock. The dealer is asking £7,790, which is £417 below the AskCar estimate of £8,207. To work out the AskCar estimate, we analyse UK dealer adverts for 1,733 MG MG3 cars across different ages and specifications. The asking price is now £700 lower than when we first recorded the advert 61 days ago. Our latest MOT record expired on 2 September 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Arthur George Motors in Stockton-on-Tees. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £417 (5%) under the AskCar estimate of £8,207.

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 1,733 priced MG MG3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 MG MG3 with the 1.5 petrol engine is typically advertised at £8,000: the median of the 45 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 MG MG3 has been on sale for at least 61 days.

Price history

AskCar first saw this advert on 2 September 2026 at £8,490. Its asking price is now £7,790, £700 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 2 September 2026: £8,490
• 10 September 2026: £8,390
• 21 September 2026: £7,990
• 3 October 2026: £8,290
• 13 October 2026: £7,990
• 30 October 2026: £7,790

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 2 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 1 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 19,891 miles, which matches the advertised 29,154 miles.

Advertised mileage is about 1,200 miles lower than the median mileage of a 2021 MG MG3 on AskCar.

Similar cars

31 other 2021 MG MG3 Exclusive NAV 1.5 petrol manual hatchbacks are for sale at UK dealers, from £5,000 to £9,799, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, blue. Mileage: 29,000 miles. Price: £7,595, £195 less than this car. Dealer: Ashley Cars in Altrincham. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-2f5f4988c3fc
• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, yellow. Mileage: 28,902 miles. Price: £7,489, £301 less than this car. Dealer: Stevenage Motor Centre in Stevenage. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-be68804d03cd
• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, black. Mileage: 30,000 miles. Price: £8,000, £210 more than this car. Dealer: M.m.r Motor Group in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-4da83debd6e1

• The nearest: 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, black, 3 miles from this car. Mileage: 30,928 miles. Price: £8,390, £600 more than this car. Dealer: Driven Car Sales in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-d4685fecf202