2020 Mazda Mazda3 2.0 SKYACTIV-X MHEV GT Sport Tech

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: 38,919 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 178 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda3 GT Sport Tech is advertised with 38,919 miles, approximately 7,100 below the typical mileage for its age. The AskCar estimate for this car is £13,195. It is priced at £12,999, which is £196 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,226 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 54 days ago. Its asking price has since fallen by £1,251. The government's MOT record matches its advertised mileage. It is for sale at HolaCars in Watford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £196 (1%) under the AskCar estimate of £13,195.

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

This 2020 Mazda Mazda3 has been on sale for at least 54 days.

Price history

AskCar first saw this advert on 9 September 2026 at £14,250. Its asking price is now £12,999, £1,251 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 9 September 2026: £14,250
• 20 September 2026: £13,499
• 25 September 2026: £13,299
• 16 October 2026: £13,199
• 22 October 2026: £12,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 27 December 2026.

It has had 5 MOTs. The latest, on 2 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 33,670 miles, which matches the advertised 38,919 miles.

Advertised mileage is about 7,100 miles lower 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 £12,495, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol saloon, black. Mileage: 50,000 miles. Price: £12,495, £504 less than this car. Dealer: Snigwig Car Centre in Northallerton. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-d420246d7b48
• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol saloon, blue. Mileage: 64,000 miles. Price: £8,990, £4,009 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, £800 less than this car. Dealer: Bridgend Motor Group in Irvine. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-0ef256d619e2