2020 Mazda Mazda3 2.0 SKYACTIV-X MHEV GT Sport

Overview

• Make: Mazda
• Model: Mazda3
• Trim: GT Sport
• Version: 2.0 Skyactiv-x Mhev GT Sport Manual FWD Euro 6 (s/s) 5dr (178 bhp)
• Year: 2020
• Mileage: 61,872 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 178 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda3 GT Sport has covered 61,872 miles, around 11,900 more miles than is typical for its age. The dealer is asking £12,599, which is £730 above the AskCar estimate of £11,869. To work out the AskCar estimate, we analyse UK dealer adverts for 1,237 Mazda Mazda3 cars across different ages and specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Eden Mazda Reading, based in Reading. 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: £730 (6%) over the AskCar estimate of £11,869.

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 2020 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £12,700: the median of the 73 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2020 Mazda Mazda3 advertised today. About 6 in 10 of 2020 Mazda Mazda3 cars are gone from sale within a month of being advertised: 76 of the 138 first advertised between 13 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £12,599. 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 5 July 2027.

It has had 5 MOTs. The latest, on 6 July 2026, passed.

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

Mileage at that test: 59,102 miles, which matches the advertised 61,872 miles.

Advertised mileage is about 11,900 miles higher than the median mileage of a 2020 Mazda Mazda3 on AskCar.

Similar cars

14 other 2020 Mazda Mazda3 GT Sport 2.0 petrol manual hatchbacks are for sale at UK dealers, from £9,450 to £14,450, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, grey. Mileage: 60,733 miles. Price: £12,299, £300 less than this car. Dealer: Hendy Ford Tunbridge Wells in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-1d813b311273
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, red. Mileage: 63,895 miles. Price: £11,490, £1,109 less than this car. Dealer: Town Autos in Bedford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-968445888d64
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, red. Mileage: 57,000 miles. Price: £12,499, £100 less than this car. Dealer: Trust Motor Company in Ferndown. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-fc219cb75d7d

• The nearest: 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, grey, 28 miles from this car. Mileage: 35,116 miles. Price: £12,700, £101 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-2dff2f11dfdc