2020 Mazda Mazda3 2.0 SKYACTIV-G MHEV GT Sport

Overview

• Make: Mazda
• Model: Mazda3
• Trim: GT Sport
• Version: 2.0 SKYACTIV-G Mhev GT Sport Manual FWD Euro 6 (s/s) 5dr (120 bhp)
• Year: 2020
• Mileage: 48,000 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 120 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 119 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda3 GT Sport is advertised with 48,000 miles on the clock. Priced at £12,995, it is advertised £244 above the AskCar estimate of £12,751. To work out the AskCar estimate, we analyse UK dealer adverts for 1,241 Mazda Mazda3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 67 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at BM Vehicles in Ware. 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: £244 (1%) over the AskCar estimate of £12,751.

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

The dealer may accept less. This 2020 Mazda Mazda3 has been on sale for at least 67 days. 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 29 August 2026 at £12,995. 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 10 December 2026.

It has had 4 MOTs. The latest, on 20 November 2025, passed.

Advisories at the latest test: front brake disc worn, but not excessively; front brake pad(s) wearing thin; offside rear tyre slightly damaged/cracking or perishing 215/45/18.

Mileage at that test: 41,563 miles, which matches the advertised 48,000 miles.

Similar cars

12 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 4 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, silver. Mileage: 49,487 miles. Price: £12,890, £105 less than this car. Dealer: Town Autos in Bedford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-72486c5fd9f3
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, red. Mileage: 49,720 miles. Price: £12,498, £497 less than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-5ba0bc7d85e9
• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, white. Mileage: 45,057 miles. Price: £12,999, the same price as this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-87c8b4fe962a

• The nearest: 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, grey, 20 miles from this car. Mileage: 35,116 miles. Price: £12,800, £195 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-2dff2f11dfdc