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: 10,205 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

This 2021 Mazda Mazda3 GT Sport Tech is advertised with 10,205 miles, approximately 21,400 below the typical mileage for its age. The AskCar estimate for this car is £16,530. It is priced at £16,795, which is £265 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,234 Mazda Mazda3 cars across different ages and specifications. Since we first spotted the advert 35 days ago, the asking price has dropped by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is EMG Motor Group Cambridge Mazda, based in Cambridge. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £265 (1%) over the AskCar estimate of £16,530.

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 35 days.

Price history

AskCar first saw this advert on 2 October 2026 at £17,295. Its asking price is now £16,795, £500 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 2 October 2026: £17,295
• 19 October 2026: £16,995
• 1 November 2026: £16,795

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 12 April 2027.

It has had 3 MOTs. The latest, on 1 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 9,794 miles, which matches the advertised 10,205 miles.

Advertised mileage is about 21,400 miles lower 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 £16,500, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red. Mileage: 21,928 miles. Price: £14,900, £1,895 less than this car. Dealer: Budgen Motors Citroen Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-3d04fd26aadc
• 2021 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, grey. Mileage: 23,520 miles. Price: £15,495, £1,300 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, blue. Mileage: 41,048 miles. Price: £14,399, £2,396 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2021-08a833e54bcc