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: 71,538 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 1.5 litres, 129 bhp
• Gearbox: Manual
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mazda MX-5 Sport Nav is advertised with 71,538 miles, approximately 41,800 above the typical mileage for its age. Priced at £11,995, it is advertised £797 above the AskCar estimate of £11,198. To work out the AskCar estimate, we analyse UK dealer adverts for 639 Mazda MX-5 cars across different ages and specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Westdrive Mazda in Braintree. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £797 (7%) over the AskCar estimate of £11,198.

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 639 priced Mazda MX-5 adverts across different ages and specifications, as of 11 November 2026.

A 2018 Mazda MX-5 with the 1.5 petrol engine is typically advertised at £12,500: the median of the 15 for sale on AskCar, as of 11 November 2026.

Time on sale

AskCar first saw this 2018 Mazda MX-5 advertised today. About 6 in 10 of 2018 Mazda MX-5 cars are gone from sale within a month of being advertised: 41 of the 73 first advertised between 12 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £11,995. 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 11 November 2026: valid until 1 June 2027.

It has had 7 MOTs. The latest, on 26 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,185 miles, which matches the advertised 71,538 miles.

Advertised mileage is about 41,800 miles higher than the median mileage of a 2018 Mazda MX-5 on AskCar.

Similar cars

6 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 11 November 2026.

The 3 closest to this car in mileage:

• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, white. Mileage: 67,800 miles. Price: £11,237, £758 less than this car. Dealer: Sparshatts Of Havant in Havant. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-8e1419c577c1
• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, white. Mileage: 50,074 miles. Price: £11,900, £95 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-50688a3ca565
• 2018 Mazda MX-5 Sport NAV, 1.5 petrol convertible, white. Mileage: 29,000 miles. Price: £15,391, £3,396 more than this car. Dealer: Prestige Cars by Peter Cooper West End in Southampton. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2018-f3648ca8ba06