2020 Mazda Mazda3 2.0 GT Sport Tech

Overview

• Make: Mazda
• Model: Mazda3
• Trim: GT Sport Tech
• Version: 2.0 GT Sport Tech Manual 4WD Euro 6 5dr (177 bhp)
• Year: 2020
• Mileage: 56,775 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 177 bhp
• Gearbox: Manual
• Drive: Four-wheel drive
• Colour: White
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 56,775 miles on the clock, this 2020 Mazda Mazda3 GT Sport Tech has done roughly 8,800 more miles than a typical 2020 Mazda Mazda3. The AskCar estimate for this car is £13,294. It is priced at £12,823, which is £471 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,241 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Carbase Bristol, based in Bristol. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £471 (3%) under the AskCar estimate of £13,294.

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 1,241 priced Mazda Mazda3 adverts across different ages and specifications, as of 4 November 2026.

A 2020 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £13,000: the median of the 72 for sale on AskCar, as of 4 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: 74 of the 133 first advertised between 13 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £12,823. 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 4 November 2026: valid until 5 March 2027.

It has had 4 MOTs. The latest, on 6 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 52,576 miles, which matches the advertised 56,775 miles.

Advertised mileage is about 8,800 miles higher than the median mileage of a 2020 Mazda Mazda3 on AskCar.

Similar cars

7 other 2020 Mazda Mazda3 GT Sport Tech 2.0 petrol manual hatchbacks are for sale at UK dealers, from £7,495 to £16,290, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, grey. Mileage: 50,400 miles. Price: £13,595, £772 more than this car. Dealer: Holdcroft Motor Group Mazda Hanley in Hanley. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-7c55b3adecd7
• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red. Mileage: 42,000 miles. Price: £15,485, £2,662 more than this car. Dealer: Harris Cars in Southampton. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-96b4e989f44e
• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, blue. Mileage: 74,987 miles. Price: £11,695, £1,128 less than this car. Dealer: Surecar Direct in Bristol. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-9795fcd69969