2021 Mazda Mazda3 2.0 e-SKYACTIV-G MHEV GT Sport Tech

Overview

• Make: Mazda
• Model: Mazda3
• Trim: GT Sport Tech
• Version: 2.0 e SKYACTIV-G Mhev GT Sport Tech Manual FWD Euro 6 (s/s) 5dr (120 bhp)
• Year: 2021
• Mileage: 37,457 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 120 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Red
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 37,457 miles on the clock, this 2021 Mazda Mazda3 GT Sport Tech has done roughly 4,200 more miles than a typical 2021 Mazda Mazda3. The AskCar estimate for this car is £14,080. It is priced at £13,995, which is £85 below that estimate. The AskCar estimate uses 1,206 UK dealer adverts for the Mazda Mazda3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Ford Newbury, based in Newbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £85 (under 1%) under the AskCar estimate of £14,080.

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 1,206 priced Mazda Mazda3 adverts across different ages and specifications, as of 10 November 2026.

A 2021 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £14,000: the median of the 54 for sale on AskCar, as of 10 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: 75 of the 135 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £13,995. 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 10 November 2026: valid until 5 March 2027.

It has had 3 MOTs. The latest, on 4 March 2026, passed.

Advisories at the latest test: front brake pad(s) wearing thin.

Mileage at that test: 32,000 miles, which matches the advertised 37,457 miles.

Advertised mileage is about 4,200 miles higher than the median mileage of a 2021 Mazda Mazda3 on AskCar.

Similar cars

6 other 2021 Mazda Mazda3 GT Sport Tech 2.0 petrol manual hatchbacks are for sale at UK dealers, from £13,295 to £16,795, as of 10 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, £404 more 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, silver. Mileage: 43,427 miles. Price: £16,500, £2,505 more than this car. Dealer: Nunns Mazda in Grimsby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-9f307be671a2
• 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red. Mileage: 44,000 miles. Price: £13,295, £700 less than this car. Dealer: Stevenage Cars in Stevenage. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-025a8102abe2