2021 Mazda Mazda3 2.0 GT Sport
Price: £16,790. Fair price: £250 (1%) under the AskCar estimate of £17,040, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,234 priced Mazda Mazda3 adverts on AskCar as of 6 November 2026.
AskCar lists 1,273 used Mazda Mazda3 from 674 UK dealerships, as of 6 November 2026.
Overview
- Make: Mazda
- Model: Mazda3
- Trim: GT Sport
- Version: 2.0 Mhev GT Sport Auto FWD Euro 6 5dr
- Year: 2021
- Mileage: 31,589 miles
- Fuel: Petrol, mild hybrid
- Body: Hatchback, 5 doors, 5 seats
- Engine: 2.0 litres
- Gearbox: Automatic
- Drive: Front-wheel drive
- Colour: White
- CO2: 142 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Mazda Mazda3 GT Sport has covered 31,589 miles. The AskCar estimate for this car is £17,040. It is priced at £16,790, which is £250 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,234 Mazda Mazda3 cars across different ages and specifications. Since we first spotted the advert 16 days ago, the asking price has dropped by £190. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Green 4 Motor Company Leamington Mazda, based in Leamington. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £250 (1%) under the AskCar estimate of £17,040.
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 1,234 priced Mazda Mazda3 adverts across different ages and specifications, as of 6 November 2026.
A 2021 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £14,800: the median of the 47 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2021 Mazda Mazda3 has been on sale for at least 16 days.
Price history
AskCar first saw this advert on 21 October 2026 at £16,980. Its asking price is now £16,790, £190 less. The latest price cut was seen on 5 November 2026.
Price changes recorded:
- 21 October 2026: £16,980
- 5 November 2026: £16,790
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 21 July 2027.
It failed its MOT on 21 July 2026 (offside front headlamp aim too low to high [adjust ]) and passed 1 day later, on 22 July 2026.
There were no advisories at the latest test.
Mileage at that test: 31,581 miles, which matches the advertised 31,589 miles.
Browse all Mazda Mazda3 cars for sale · 2021 Mazda Mazda3 price guide
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Photos
35 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.