2021 MG MG3

1.5 VTi Tech Exclusive NAV Manual FWD Euro 6 (s/s) 5dr (105 bhp)

£7,500

Fair price: within 8% of the typical £7,844 for this model, age and mileage, drawing on 1,769 adverts of this make and model.

Overview

Make: MG
Model: MG3
Trim: EXCLUSIVE NAV
Version: 1.5 VTi Tech Exclusive NAV Manual FWD Euro 6 (s/s) 5dr (105 bhp)
Mileage: 37,000 miles
Year: 2021
Fuel type: Petrol
Body type: Hatchback
Engine: 1.5 L
Gearbox: Manual
Power: 105 bhp
Seats: 5
CO2: 147 g/km
Colour: Red
Doors: 5
Driven wheels: Front Wheel Drive
Engine badge: VTi-TECH
Emissions standard: Euro 6

About this car

This 2021 MG MG3 Exclusive Nav is advertised with 37,000 miles, approximately 6,700 above the typical mileage for its age. Our estimated market asking price is £7,844. This car is advertised at £7,500, which is £344 below that figure. To estimate its market asking price, we analyse UK dealer adverts for 1,769 MG MG3 cars across different ages and specifications. We first saw this car advertised 132 days ago. Its asking price has since fallen by £500. It may give you a starting point for a conversation about price. MOT records show an expiry date of 17 February 2027, and the latest recorded mileage is consistent with the advert. The seller is Monks Cross Used Cars, based in Monks Cross.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 10 June 2026, 132 days ago. Advert duration calculated on 20 October 2026. Net asking-price reduction: £500 from the first recorded £8,000. 2 price reductions recorded, the latest observed on 11 October 2026.

Recorded asking prices
Date observed	Asking price
7 July 2026	£8,000
25 September 2026	£7,750
11 October 2026	£7,500
19 October 2026	£7,500

Price and mileage comparison

Estimated market asking price: £7,844. The asking price is £344 below this estimate.

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

The pricing calculation includes 1,769 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 6,700 miles higher than typical for a 2021 MG MG3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 17 February 2027. 35,630 miles at the last test.

30 other cars with the same year, trim, gearbox and fuel are for sale from £5,395 to £9,799.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£5,395	116,900 miles
£6,490	65,097 miles
£6,850	73,000 miles
£7,000	41,227 miles
£7,489	28,902 miles

These cars have covered 4,500–116,900 miles, compared with 37,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

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Dealer

Monks Cross Used Cars, Monks Cross. Across the dealer network: 45 cars for sale.

Dealer postcode: YO32 9JR.