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: 31,461 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 105 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 147 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 MG MG3 Exclusive Nav has covered 31,461 miles. The AskCar estimate for this car is £8,069. It is priced at £7,730, which is £339 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,818 MG MG3 cars across different ages and specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Big Motoring World Peterborough, based in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £339 (4%) under the AskCar estimate of £8,069.

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 1,818 priced MG MG3 adverts across different ages and specifications, as of 10 November 2026.

A 2021 MG MG3 with the 1.5 petrol engine is typically advertised at £8,000: the median of the 47 for sale on AskCar, as of 10 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 72 first advertised between 13 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £7,730. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 2 February 2027.

It failed its MOT on 9 November 2026 (offside rear tyre has ply or cords exposed; nearside headlamp aim too low; offside headlamp aim too low) and passed 1 day later, on 10 November 2026.

There were no advisories at the latest test.

Mileage at that test: 31,464 miles, which matches the advertised 31,461 miles.

Advertised mileage is about 1,100 miles higher than the median mileage of a 2021 MG MG3 on AskCar.

Similar cars

33 other 2021 MG MG3 Exclusive NAV 1.5 petrol manual hatchbacks are for sale at UK dealers, from £5,000 to £9,699, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, black. Mileage: 30,928 miles. Price: £8,390, £660 more than this car. Dealer: Driven Car Sales in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-d4685fecf202
• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, silver. Mileage: 30,745 miles. Price: £8,499, £769 more than this car. Dealer: Bripark Willenhall in Walsall. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-17a8f4e11500
• 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, white. Mileage: 30,682 miles. Price: £7,850, £120 more than this car. Dealer: Big Car World - St. Margarets in Leicester. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-f0f36c716bdf

• The nearest: 2021 MG MG3 Exclusive NAV, 1.5 petrol hatchback, red, 20 miles from this car. Mileage: 26,514 miles. Price: £8,899, £1,169 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mg-mg3-2021-5a003cd99c45