2018 Mazda Mazda3 2.0 SKYACTIV-G Sport NAV

Overview

• Make: Mazda
• Model: Mazda3
• Trim: Sport NAV
• Version: 2.0 SKYACTIV-G Sport NAV Auto FWD Euro 6 (s/s) 5dr (119 bhp)
• Year: 2018
• Mileage: 46,000 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 119 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 46,000 miles on the clock, this 2018 Mazda Mazda3 Sport Nav has done roughly 7,400 fewer miles than a typical 2018 Mazda Mazda3. Its asking price of £12,499 is £340 above the AskCar estimate of £12,159. The AskCar estimate uses UK dealer asking prices, including 1,241 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 42 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stadium Motors, based in Sunderland. 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: £340 (2%) over the AskCar estimate of £12,159.

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 2018 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £10,000: the median of the 75 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 Mazda Mazda3 has been on sale for at least 42 days.

Price history

AskCar first saw this advert on 23 September 2026 at £12,499. 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 14 June 2027.

It has had 8 MOTs. The latest, on 3 June 2026, passed.

Advisories at the latest test: rear lower rear lower bumper damaged; offside front brake pipe corroded, covered in grease or other material; nearside front brake pipe corroded, covered in grease or other material; and 5 more.

Mileage at that test: 45,149 miles, which matches the advertised 46,000 miles.

Advertised mileage is about 7,400 miles lower than the median mileage of a 2018 Mazda Mazda3 on AskCar.

Similar cars

8 other 2018 Mazda Mazda3 Sport NAV 2.0 petrol automatic hatchbacks are for sale at UK dealers, from £8,891 to £15,340, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, silver. Mileage: 49,218 miles. Price: £11,900, £599 less than this car. Dealer: Surrey Specialist Cars in Guildford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-5b2412ff3baf
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, blue. Mileage: 50,800 miles. Price: £12,190, £309 less than this car. Dealer: Motorpod in Newport. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-ca2a04ed1167
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, white. Mileage: 57,000 miles. Price: £11,450, £1,049 less than this car. Dealer: Windmill Motors in Bourne. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-b4c182386ed4

• The nearest: 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, grey, 138 miles from this car. Mileage: 24,782 miles. Price: £14,100, £1,601 more than this car. Dealer: Beechwood (Derby) Limited (MAZDA, GWM & CHANGAN) in Derby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-6924f81bb311