2018 Mazda Mazda3 2.0 SKYACTIV-G Sport NAV

Overview

• Make: Mazda
• Model: Mazda3
• Trim: Sport NAV
• Version: 2.0 SKYACTIV-G Sport NAV Manual FWD Euro 6 (s/s) 5dr (119 bhp)
• Year: 2018
• Mileage: 31,514 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 119 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 119 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mazda Mazda3 Sport Nav is advertised with 31,514 miles, approximately 22,700 below the typical mileage for its age. Priced at £12,399, it is advertised £330 above the AskCar estimate of £12,069. To work out the AskCar estimate, we analyse UK dealer adverts for 1,226 Mazda Mazda3 cars across different ages and specifications. The asking price is now £150 lower than when we first recorded the advert 15 days ago. Its advertised mileage matches the government's MOT record. It is for sale at cinch Corby in North Northamptonshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £330 (2%) over the AskCar estimate of £12,069.

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 1,226 priced Mazda Mazda3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £10,000: the median of the 71 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Mazda Mazda3 has been on sale for at least 15 days.

Price history

AskCar first saw this advert on 18 October 2026 at £12,549. Its asking price is now £12,399, £150 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 18 October 2026: £12,549
• 20 October 2026: £12,399

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 September 2027.

It has had 7 MOTs. The latest, on 22 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 31,516 miles, which matches the advertised 31,514 miles.

Advertised mileage is about 22,700 miles lower than the median mileage of a 2018 Mazda Mazda3 on AskCar.

Similar cars

33 other 2018 Mazda Mazda3 Sport NAV 2.0 petrol manual hatchbacks are for sale at UK dealers, from £6,991 to £13,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, white. Mileage: 31,197 miles. Price: £12,340, £59 less than this car. Dealer: Billing Car and Van Centre in Northampton. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-fa997e03e796
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, silver. Mileage: 32,588 miles. Price: £11,548, £851 less than this car. Dealer: Vertu Nissan Stockton in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-d2c9c5e62b2d
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, red. Mileage: 33,356 miles. Price: £11,995, £404 less than this car. Dealer: Perrys Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-e36257694db8