2021 Mazda Mazda3 2.0 e-SKYACTIV-X MHEV GT Sport Tech
Price: £16,500. Above the going rate: £1,588 (10%) over the AskCar estimate of £14,912, 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 Tech
- Version: 2.0 e-SKYACTIV-X Mhev GT Sport Tech Manual FWD Euro 6 (s/s) 5dr (183 bhp)
- Year: 2021
- Mileage: 43,427 miles
- Fuel: Petrol, mild hybrid
- Body: Hatchback, 5 doors, 5 seats
- Engine: 2.0 litres, 183 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Silver
- CO2: 121 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Mazda Mazda3 GT Sport Tech is advertised with 43,427 miles, approximately 11,800 above the typical mileage for its age. Priced at £16,500, it is advertised £1,588 above the AskCar estimate of £14,912. The AskCar estimate draws on 1,234 Mazda Mazda3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 48 days. You can find this car at Nunns Mazda in Grimsby. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Above the going rate: £1,588 (10%) over the AskCar estimate of £14,912.
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 48 days.
Price history
AskCar first saw this advert on 19 September 2026 at £15,500. Its asking price is now £16,500, £1,000 more.
Price changes recorded:
- 19 September 2026: £15,500
- 26 September 2026: £16,500
Mileage and MOT
Advertised mileage is about 11,800 miles higher than the median mileage of a 2021 Mazda Mazda3 on AskCar.
Similar cars
4 other 2021 Mazda Mazda3 GT Sport Tech 2.0 petrol manual hatchbacks are for sale at UK dealers, from £14,399 to £16,795, as of 6 November 2026.
The 3 closest to this car in mileage:
- 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, blue. Mileage: 41,048 miles. Price: £14,399, £2,101 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-08a833e54bcc
- 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, grey. Mileage: 23,520 miles. Price: £15,495, £1,005 less than this car. Dealer: Victoria Park Mazda in Cardiff. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-f98d204542ee
- 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red. Mileage: 21,928 miles. Price: £14,900, £1,600 less than this car. Dealer: Budgen Motors Citroen Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-3d04fd26aadc
Browse all Mazda Mazda3 cars for sale · 2021 Mazda Mazda3 price guide
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Photos
53 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.