2020 Mazda Mazda3 2.0 SKYACTIV-X MHEV GT Sport Tech
Price: £12,495. Fair price: £234 (1%) over the AskCar estimate of £12,261, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,226 priced Mazda Mazda3 adverts on AskCar as of 2 November 2026.
AskCar lists 1,275 used Mazda Mazda3 from 671 UK dealerships, as of 2 November 2026.
Overview
- Make: Mazda
- Model: Mazda3
- Trim: GT Sport Tech
- Version: 2.0 Skyactiv-x Mhev GT Sport Tech Manual FWD Euro 6 (s/s) 4dr (178 bhp)
- Year: 2020
- Mileage: 50,000 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: 127 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 50,000 miles, this 2020 Mazda Mazda3 GT Sport Tech has covered about 4,000 more miles than other 2020 Mazda Mazda3 cars. Its asking price of £12,495 is £234 above the AskCar estimate of £12,261. The AskCar estimate uses 1,226 UK dealer adverts for the Mazda Mazda3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 2 days. It is advertised by Snigwig Car Centre in Northallerton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £234 (1%) over the AskCar estimate of £12,261.
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 1,226 priced Mazda Mazda3 adverts across different ages and specifications, as of 2 November 2026.
A 2020 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £13,000: the median of the 68 for sale on AskCar, as of 2 November 2026.
Time on sale
AskCar first saw this 2020 Mazda Mazda3 advertised 2 days ago. About 6 in 10 of 2020 Mazda Mazda3 cars are gone from sale within a month of being advertised: 73 of the 128 first advertised between 13 July 2026 and 29 September 2026.
Price history
AskCar first saw this advert on 31 October 2026 at £12,495. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 4,000 miles higher than the median mileage of a 2020 Mazda Mazda3 on AskCar.
Similar cars
3 other 2020 Mazda Mazda3 GT Sport Tech 2.0 petrol manual saloons are for sale at UK dealers, from £8,990 to £12,999, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol saloon, grey. Mileage: 38,919 miles. Price: £12,999, £504 more than this car. Dealer: HolaCars in Watford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-8daa7bfd8bfb
- 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol saloon, blue. Mileage: 64,000 miles. Price: £8,990, £3,505 less than this car. Dealer: HMC in Chesham. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-9ed0ad2cf1cf
- 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol saloon, silver. Mileage: 66,587 miles. Price: £12,199, £296 less than this car. Dealer: Bridgend Motor Group in Irvine. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-0ef256d619e2
Browse all Mazda Mazda3 cars for sale · 2020 Mazda Mazda3 price guide
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Photos
2 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.