2021 Mazda Mazda3 2.0 GT Sport Tech

Price: £9,990. Far below the going rate: £8,221 (45%) under the AskCar estimate of £18,211, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,200 priced Mazda Mazda3 adverts on AskCar as of 8 November 2026. Worth asking the dealer why.

AskCar lists 1,248 used Mazda Mazda3 from 671 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mazda
  • Model: Mazda3
  • Trim: GT Sport Tech
  • Version: 2.0 GT Sport Tech Auto Euro 6 5dr
  • Year: 2021
  • Mileage: 30,069 miles
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres
  • Gearbox: Automatic
  • Colour: Grey
  • Emissions standard: Euro 6

About this car

At 30,069 miles, this 2021 Mazda Mazda3 GT Sport Tech has covered about 2,600 fewer miles than other 2021 Mazda Mazda3 cars. This car is priced at £9,990, £8,221 below the AskCar estimate of £18,211. Such a large price gap is worth checking with the dealer. The AskCar estimate uses UK dealer asking prices, including 1,200 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. It is for sale at Advantage Motors in Rotherham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Far below the going rate: £8,221 (45%) under the AskCar estimate of £18,211. Worth asking the dealer why.

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 1,200 priced Mazda Mazda3 adverts across different ages and specifications, as of 8 November 2026.

Time on sale

AskCar first saw this 2021 Mazda Mazda3 advertised today. About 6 in 10 of 2021 Mazda Mazda3 cars are gone from sale within a month of being advertised: 74 of the 133 first advertised between 11 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 8 November 2026 at £9,990. 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 8 November 2026: valid until 3 April 2027.

It has had 3 MOTs. The latest, on 3 April 2026, passed.

Advisories at the latest test: windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 24,320 miles, which matches the advertised 30,069 miles.

Advertised mileage is about 2,600 miles lower than the median mileage of a 2021 Mazda Mazda3 on AskCar.

Browse all Mazda Mazda3 cars for sale · 2021 Mazda Mazda3 price guide

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Photos

28 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,762 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.