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 Auto FWD Euro 6 (s/s) 5dr (120 bhp)
• Year: 2020
• Mileage: 21,121 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: 147 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 21,121 miles on the clock, this 2020 Mazda Mazda3 GT Sport has done roughly 26,900 fewer miles than a typical 2020 Mazda Mazda3. Its asking price of £15,999 is £266 below the AskCar estimate of £16,265. The AskCar estimate draws on 1,241 Mazda Mazda3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 34 days ago. Its asking price has since fallen by £200. The government's MOT record matches its advertised mileage. You can find this car at cinch Bellevue in Hart. 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: £266 (1%) under the AskCar estimate of £16,265.

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 34 days.

Price history

AskCar first saw this advert on 1 October 2026 at £16,199. Its asking price is now £15,999, £200 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 1 October 2026: £16,199
• 2 October 2026: £16,499
• 3 November 2026: £15,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 23 September 2027.

It has had 4 MOTs. The latest, on 21 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 21,126 miles, which matches the advertised 21,121 miles.

Advertised mileage is about 26,900 miles lower than the median mileage of a 2020 Mazda Mazda3 on AskCar.

Similar cars

1 other 2020 Mazda Mazda3 GT Sport 2.0 petrol automatic hatchback is for sale at UK dealers, as of 4 November 2026.

The closest to this car in mileage:

• 2020 Mazda Mazda3 GT Sport, 2.0 petrol hatchback, red. Mileage: 8,029 miles. Price: £18,295, £2,296 more than this car. Dealer: Magna Mazda Salisbury in Salisbury. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2020-f56bad8e0878