2020 Mazda Mazda3 2.0 SKYACTIV-G MHEV GT Sport Tech

Overview

• Make: Mazda
• Model: Mazda3
• Trim: GT Sport Tech
• Version: 2.0 SKYACTIV-G Mhev GT Sport Tech Auto FWD Euro 6 (s/s) 5dr (120 bhp)
• Year: 2020
• Mileage: 59,377 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 120 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 59,377 miles on the clock, this 2020 Mazda Mazda3 GT Sport Tech has done roughly 11,400 more miles than a typical 2020 Mazda Mazda3. The AskCar estimate for this car is £12,870. It is priced at £13,475, which is £605 above that estimate. The AskCar estimate uses 1,241 UK dealer adverts for the Mazda Mazda3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 11 days ago. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at JMV Cars Ltd of Shorne in Gravesend. 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: £605 (4%) over the AskCar estimate of £12,870.

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

This 2020 Mazda Mazda3 has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 24 October 2026 at £13,475. 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 7 November 2026.

It has had 5 MOTs. The latest, on 6 November 2025, passed.

Advisories at the latest test: nearside rear brake disc worn, pitted or scored, but not seriously weakened; offside rear brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 53,105 miles, which matches the advertised 59,377 miles.

Advertised mileage is about 11,400 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 automatic hatchbacks are for sale at UK dealers, from £13,699 to £17,822, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, silver. Mileage: 53,736 miles. Price: £14,299, £824 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-e03d4e56eb6b
• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, red. Mileage: 52,736 miles. Price: £13,699, £224 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-cf449a8ec6e9
• 2020 Mazda Mazda3 GT Sport Tech, 2.0 petrol hatchback, black. Mileage: 17,975 miles. Price: £17,822, £4,347 more than this car. Dealer: Stellantis &You Stockport in Stockport. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-97cb327765b9