2018 Mazda MX-5 1.5 SKYACTIV-G Sport NAV

Overview

• Make: Mazda
• Model: MX-5
• Trim: Sport NAV
• Version: 1.5 SKYACTIV-G Sport NAV Manual RWD Euro 6 2dr (129 bhp)
• Year: 2018
• Mileage: 29,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 1.5 litres, 129 bhp
• Gearbox: Manual
• Drive: Rear-wheel drive
• Colour: White
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mazda MX-5 Sport Nav has covered 29,000 miles. Its asking price of £15,391 is £449 above the AskCar estimate of £14,942. The AskCar estimate draws on 638 Mazda MX-5 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 5 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Prestige Cars by Peter Cooper West End in Southampton. 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: £449 (3%) over the AskCar estimate of £14,942.

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 638 priced Mazda MX-5 adverts across different ages and specifications, as of 4 November 2026.

A 2018 Mazda MX-5 with the 1.5 petrol engine is typically advertised at £14,100: the median of the 12 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2018 Mazda MX-5 advertised 5 days ago. About 6 in 10 of 2018 Mazda MX-5 cars are gone from sale within a month of being advertised: 39 of the 70 first advertised between 12 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £15,391. 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 9 July 2027.

It has had 6 MOTs. The latest, on 2 July 2026, passed.

Advisories at the latest test: offside rear tyre slightly damaged/cracking or perishing 195/50R16; nearside rear tyre slightly damaged/cracking or perishing; front brake pad(s) wearing thin.

Mileage at that test: 28,385 miles, which matches the advertised 29,000 miles.

Advertised mileage is about 800 miles lower than the median mileage of a 2018 Mazda MX-5 on AskCar.

Similar cars

5 other 2018 Mazda MX-5 Sport NAV 1.5 petrol manual convertibles are for sale at UK dealers, from £11,237 to £15,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, white. Mileage: 28,691 miles. Price: £14,995, £396 less than this car. Dealer: Vertu Honda Doncaster in Doncaster. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-c28037198921
• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, grey. Mileage: 26,500 miles. Price: £14,499, £892 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-948089084bd1
• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, silver. Mileage: 15,987 miles. Price: £15,990, £599 more than this car. Dealer: Johnsons Mazda Gloucester in Gloucester. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-3dbe5650c0b3

• The nearest: 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, white, 15 miles from this car. Mileage: 67,800 miles. Price: £11,237, £4,154 less than this car. Dealer: Sparshatts Of Havant in Havant. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-8e1419c577c1