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: 50,800 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

At 50,800 miles, this 2018 Mazda Mazda3 Sport Nav has covered about 2,600 fewer miles than other 2018 Mazda Mazda3 cars. Its asking price of £12,190 is £410 above the AskCar estimate of £11,780. The AskCar estimate uses UK dealer asking prices, including 1,241 Mazda Mazda3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 19 days ago. Its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Motorpod in Newport. 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: £410 (3%) over the AskCar estimate of £11,780.

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 19 days.

Price history

AskCar first saw this advert on 16 October 2026 at £12,490. Its asking price is now £12,190, £300 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 16 October 2026: £12,490
• 31 October 2026: £12,190

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 4 October 2027.

It has had 10 MOTs. The latest, on 5 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 50,790 miles, which matches the advertised 50,800 miles.

Advertised mileage is about 2,600 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, £290 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: 46,000 miles. Price: £12,499, £309 more than this car. Dealer: Stadium Motors in Deptford. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-42684dcedf86
• 2018 Mazda Mazda3 Sport NAV, 2.0 petrol hatchback, white. Mileage: 57,000 miles. Price: £11,450, £740 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, red, 12 miles from this car. Mileage: 33,500 miles. Price: £13,495, £1,305 more than this car. Dealer: Everycar in Clevedon. AskCar page: https://askcar.co.uk/car/mazda-mazda3-2018-ced686573a81