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 (s/s) 5dr (118 bhp)
• Year: 2018
• Mileage: 31,918 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 118 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: White
• CO2: 129 g/km

About this car

With 31,918 miles on the clock, this 2018 Mazda Mazda3 Sport Nav has done roughly 20,500 fewer miles than a typical 2018 Mazda Mazda3. The AskCar estimate for this car is £13,184. It is priced at £12,582, which is £602 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,200 Mazda Mazda3 cars across different ages and specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Carsa Gloucester, based in Gloucester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £602 (4%) under the AskCar estimate of £13,184.

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 1,200 priced Mazda Mazda3 adverts across different ages and specifications, as of 8 November 2026.

A 2018 Mazda Mazda3 with the 2.0 petrol engine is typically advertised at £10,000: the median of the 67 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2018 Mazda Mazda3 advertised today. About 4 in 10 of 2018 Mazda Mazda3 cars are gone from sale within a month of being advertised: 45 of the 114 first advertised between 12 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 8 November 2026 at £12,582. 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 8 November 2026: valid until 26 March 2027.

It has had 6 MOTs. The latest, on 27 March 2026, passed.

Advisories at the latest test: under trays.

Mileage at that test: 26,933 miles, which matches the advertised 31,918 miles.

Advertised mileage is about 20,500 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 £14,450, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, red. Mileage: 33,500 miles. Price: £13,495, £913 more than this car. Dealer: Everycar in Clevedon. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-ced686573a81
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, red. Mileage: 25,080 miles. Price: £13,499, £917 more than this car. Dealer: Days Motorpark in Swansea. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-6711d3a19c8d
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, grey. Mileage: 24,782 miles. Price: £14,100, £1,518 more than this car. Dealer: Beechwood (Derby) Limited (MAZDA, GWM & CHANGAN) in Derby. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-6924f81bb311

• The nearest: 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, blue, 39 miles from this car. Mileage: 50,800 miles. Price: £12,190, £392 less than this car. Dealer: Motorpod in Newport. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-ca2a04ed1167