2020 Mazda Mazda6 2.0 SKYACTIV-G Sport Nav+

Price: £16,999. Fair price: £452 (2%) under the AskCar estimate of £17,451, our expected asking price for this car from its model, age, mileage and specification, drawing on 395 priced Mazda Mazda6 adverts on AskCar as of 5 November 2026.

AskCar lists 424 used Mazda Mazda6 from 314 UK dealerships, as of 5 November 2026.

Overview

  • Make: Mazda
  • Model: Mazda6
  • Trim: Sport Nav+
  • Version: 2.0 SKYACTIV-G Sport Nav+ Manual FWD Euro 6 4dr (162 bhp)
  • Year: 2020
  • Mileage: 21,228 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 162 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Blue
  • CO2: 152 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda6 Sport Nav+ is advertised with 21,228 miles, approximately 14,800 below the typical mileage for its age. The AskCar estimate for this car is £17,451. It is priced at £16,999, which is £452 below that estimate. The AskCar estimate draws on 395 Mazda Mazda6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 16 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Available Car Supermarket - Castle Donington in Castle Donnington. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £452 (2%) under the AskCar estimate of £17,451.

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 395 priced Mazda Mazda6 adverts across different ages and specifications, as of 5 November 2026.

A 2020 Mazda Mazda6 with the 2.0 petrol engine is typically advertised at £15,000: the median of the 13 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 Mazda Mazda6 has been on sale for at least 16 days.

Price history

AskCar first saw this advert on 20 October 2026 at £16,999. 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 5 November 2026: valid until 5 August 2027.

It has had 4 MOTs. The latest, on 25 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 18,295 miles, which matches the advertised 21,228 miles.

Advertised mileage is about 14,800 miles lower than the median mileage of a 2020 Mazda Mazda6 on AskCar.

Similar cars

5 other 2020 Mazda Mazda6 Sport Nav+ 2.0 petrol manual saloons are for sale at UK dealers, from £14,000 to £17,490, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2020 Mazda Mazda6 Sport Nav+, 2.0 petrol saloon, red. Mileage: 23,018 miles. Price: £16,998, the same price as this car. Dealer: Arnold Clark Wakefield Motorstore / Vanstore in Wakefield. AskCar page: https://askcar.co.uk/car/mazda-mazda6-2020-1a32649c9abe
  • 2020 Mazda Mazda6 Sport Nav+, 2.0 petrol saloon, red. Mileage: 19,000 miles. Price: £17,490, £491 more than this car. Dealer: Scottish Motor Services in Glasgow. AskCar page: https://askcar.co.uk/car/mazda-mazda6-2020-73ca670e567d
  • 2020 Mazda Mazda6 Sport Nav+, 2.0 petrol saloon, blue. Mileage: 15,500 miles. Price: £16,995, the same price as this car. Dealer: Milcars Mazda in Watford. AskCar page: https://askcar.co.uk/car/mazda-mazda6-2020-d604e303d152

Browse all Mazda Mazda6 cars for sale · 2020 Mazda Mazda6 price guide

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Photos

39 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.