2021 MG MG3 1.5 VTi-TECH Exclusive NAV

Price: £6,995. Fair price: £162 (2%) under the AskCar estimate of £7,157, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,789 priced MG MG3 adverts on AskCar as of 4 November 2026.

AskCar lists 1,832 used MG MG3 from 663 UK dealerships, as of 4 November 2026.

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: 52,591 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 105 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Yellow
  • CO2: 147 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 MG MG3 Exclusive Nav has covered 52,591 miles, around 21,900 more miles than is typical for its age. The AskCar estimate for this car is £7,157. It is priced at £6,995, which is £162 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,789 MG MG3 cars across different ages and specifications. It first appeared in our advert records today. The seller is Longstone Edinburgh, based in Edinburgh. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £162 (2%) under the AskCar estimate of £7,157.

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 1,789 priced MG MG3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 MG MG3 with the 1.5 petrol engine is typically advertised at £8,000: the median of the 46 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 MG MG3 advertised today. About 4 in 10 of 2021 MG MG3 cars are gone from sale within a month of being advertised: 28 of the 71 first advertised between 13 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £6,995. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 21,900 miles higher than the median mileage of a 2021 MG MG3 on AskCar.

Similar cars

32 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 4 November 2026.

The 3 closest to this car in mileage:

  • 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, yellow. Mileage: 45,300 miles. Price: £7,999, £1,004 more than this car. Dealer: Cheshire Automotive in Helsby. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-9640a79e7746
  • 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, silver. Mileage: 43,519 miles. Price: £7,740, £745 more than this car. Dealer: Dace Motor Company - Trading Standards Approved in Stockport. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-07f11eb1c943
  • 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, white. Mileage: 41,227 miles. Price: £7,150, £155 more than this car. Dealer: Big Car World - St. Margarets in Leicester. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-7f803ed98bb7
  • The nearest: 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, red, 87 miles from this car. Mileage: 16,167 miles. Price: £9,499, £2,504 more than this car. Dealer: Tustain Motors Cramlington in Cramlington. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-ed3cf2571e23

Browse all MG MG3 cars for sale · 2021 MG MG3 price guide

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As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.