2020 Mazda Mazda6 2.0 SKYACTIV-G Sport Nav+

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: 15,500 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 162 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mazda Mazda6 Sport Nav+ is advertised with 15,500 miles, approximately 20,500 below the typical mileage for its age. Its asking price of £16,995 is £1,081 below the AskCar estimate of £18,076. The AskCar estimate uses 395 UK dealer adverts for the Mazda Mazda6, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 58 days ago, the asking price has dropped by £1,800. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Milcars Mazda in Watford. 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: £1,081 (5%) under the AskCar estimate of £18,076.

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 58 days.

Price history

AskCar first saw this advert on 8 September 2026 at £18,795. Its asking price is now £16,995, £1,800 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 8 September 2026: £18,795
• 30 September 2026: £18,295
• 3 October 2026: £17,695
• 20 October 2026: £16,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 28 February 2027.

It has had 4 MOTs. The latest, on 2 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 13,589 miles, which matches the advertised 15,500 miles.

Advertised mileage is about 20,500 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: 19,000 miles. Price: £17,490, £495 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: 21,228 miles. Price: £16,999, the same price as this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/mazda-mazda6-2020-8f51d4f0ddda
• 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

• The nearest: 2020 Mazda Mazda6 Sport Nav+, 2.0 petrol saloon, white, 41 miles from this car. Mileage: 36,000 miles. Price: £14,000, £2,995 less than this car. Dealer: Chariots Car Centre in Canvey Island. AskCar page: https://askcar.co.uk/car/mazda-mazda6-2020-1ee2e05a4d38