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: 44,000 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 44,000 miles on the clock, this 2021 Mazda Mazda3 GT Sport Tech has done roughly 11,700 more miles than a typical 2021 Mazda Mazda3. The AskCar estimate for this car is £13,491. It is priced at £13,295, which is £196 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,237 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 10 days ago. Its advertised mileage matches the government's MOT record. The seller is Stevenage Cars, based in Stevenage. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £196 (1%) under the AskCar estimate of £13,491.

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 1,237 priced Mazda Mazda3 adverts across different ages and specifications, as of 7 November 2026.

A 2021 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £14,500: the median of the 48 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mazda Mazda3 has been on sale for at least 10 days.

Price history

AskCar first saw this advert on 28 October 2026 at £13,295. 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 7 November 2026: valid until 29 July 2027.

It has had 4 MOTs. The latest, on 24 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 43,795 miles, which matches the advertised 44,000 miles.

Advertised mileage is about 11,700 miles higher than the median mileage of a 2021 Mazda Mazda3 on AskCar.

Similar cars

5 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 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, silver. Mileage: 43,427 miles. Price: £16,500, £3,205 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, blue. Mileage: 41,048 miles. Price: £14,399, £1,104 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, grey. Mileage: 23,520 miles. Price: £15,495, £2,200 more than this car. Dealer: Victoria Park Mazda in Cardiff. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-f98d204542ee

• The nearest: 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red, 27 miles from this car. Mileage: 10,205 miles. Price: £16,795, £3,500 more than this car. Dealer: EMG Motor Group Cambridge Mazda in Cambridge. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-29c92bf75f0a