2021 Mazda Mazda3 2.0 e-SKYACTIV-X MHEV GT Sport Tech
Price: £15,999. Fair price: £340 (2%) under the AskCar estimate of £16,339, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,226 priced Mazda Mazda3 adverts on AskCar as of 2 November 2026.
AskCar lists 1,275 used Mazda Mazda3 from 671 UK dealerships, as of 2 November 2026.
Overview
- Make: Mazda
- Model: Mazda3
- Trim: GT Sport Tech
- Version: 2.0 e-SKYACTIV-X Mhev GT Sport Tech Auto FWD Euro 6 (s/s) 5dr (183 bhp)
- Year: 2021
- Mileage: 41,831 miles
- Fuel: Petrol, mild hybrid
- Body: Hatchback, 5 doors, 5 seats
- Engine: 2.0 litres, 183 bhp
- Gearbox: Automatic
- Drive: Front-wheel drive
- Colour: Red
- CO2: 142 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 41,831 miles on the clock, this 2021 Mazda Mazda3 GT Sport Tech has done roughly 12,300 more miles than a typical 2021 Mazda Mazda3. The dealer is asking £15,999, which is £340 below the AskCar estimate of £16,339. To work out the AskCar estimate, we analyse UK dealer adverts for 1,226 Mazda Mazda3 cars across different ages and specifications. We first recorded this car for sale 11 days ago. Its advertised mileage matches the government's MOT record. The seller is Sandles Cars, based in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £340 (2%) under the AskCar estimate of £16,339.
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 1,226 priced Mazda Mazda3 adverts across different ages and specifications, as of 2 November 2026.
A 2021 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £14,700: the median of the 50 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2021 Mazda Mazda3 has been on sale for at least 11 days.
Price history
AskCar first saw this advert on 22 October 2026 at £15,999. 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 2 November 2026: valid until 15 March 2027.
It has had 3 MOTs. The latest, on 16 March 2026, passed.
Advisories at the latest test: rear brake disc worn, pitted or scored, but not seriously weakened.
Mileage at that test: 38,963 miles, which matches the advertised 41,831 miles.
Advertised mileage is about 12,300 miles higher than the median mileage of a 2021 Mazda Mazda3 on AskCar.
Similar cars
1 other 2021 Mazda Mazda3 GT Sport Tech 2.0 petrol automatic hatchback is for sale at UK dealers, as of 2 November 2026.
The closest to this car in mileage:
- 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, grey. Mileage: 32,197 miles. Price: £16,749, £750 more than this car. Dealer: Motorpoint Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-a7e87355b332
Browse all Mazda Mazda3 cars for sale · 2021 Mazda Mazda3 price guide
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Photos
4 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.