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) 4dr (178 bhp)
• Year: 2020
• Mileage: 45,864 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 178 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 102 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda3 GT Sport has covered 45,864 miles, around 4,000 fewer miles than is typical for its age. The AskCar estimate for this car is £13,104. It is priced at £12,999, which is £105 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,206 Mazda Mazda3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 61 days, and its asking price has been cut by £500. Its advertised mileage matches the government's MOT record. It is advertised by Western Commercial Western Mazda in Newbridge. 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: £105 (under 1%) under the AskCar estimate of £13,104.

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 2020 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £12,900: the median of the 72 for sale on AskCar, as of 10 November 2026.

Time on sale

The dealer may accept less. This 2020 Mazda Mazda3 has been on sale for at least 61 days, and its asking price has been cut by £500. About 6 in 10 of 2020 Mazda Mazda3 cars are gone from sale within a month of being advertised: 80 of the 142 first advertised between 13 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 September 2026 at £13,499. Its asking price is now £12,999, £500 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 10 September 2026: £13,499
• 23 September 2026: £13,498
• 22 October 2026: £12,998
• 10 November 2026: £12,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 23 May 2027.

It has had 4 MOTs. The latest, on 28 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 41,774 miles, which matches the advertised 45,864 miles.

Advertised mileage is about 4,000 miles lower than the median mileage of a 2020 Mazda Mazda3 on AskCar.

Similar cars

4 other 2020 Mazda Mazda3 GT Sport 2.0 petrol manual saloons are for sale at UK dealers, from £11,995 to £14,999, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport, 2.0 petrol saloon, black. Mileage: 32,300 miles. Price: £14,500, £1,501 more than this car. Dealer: Simon Shield Cars in Ipswich. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-2540555a74d7
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol saloon, silver. Mileage: 31,924 miles. Price: £14,180, £1,181 more than this car. Dealer: Evans Halshaw Kia Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-8e8e2eaf35f3
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol saloon, red. Mileage: 64,000 miles. Price: £11,995, £1,004 less than this car. Dealer: MB Motors Ballymena in Ballymena. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-652788360d57