2021 Mazda CX-30 2.0 GT Sport Tech

Price: £18,000. Above the going rate: £2,592 (16%) over the AskCar estimate of £15,408, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,561 priced Mazda CX-30 adverts on AskCar as of 5 November 2026.

AskCar lists 1,583 used Mazda CX-30 from 535 UK dealerships, as of 5 November 2026.

Overview

  • Make: Mazda
  • Model: CX-30
  • Trim: GT Sport Tech
  • Version: 2.0 Mhev GT Sport Tech Manual Euro 6 (s/s) 5dr (183 bhp)
  • Year: 2021
  • Mileage: 28,278 miles
  • Fuel: Petrol, mild hybrid
  • Body: SUV, 5 doors, 5 seats
  • Engine: 2.0 litres, 183 bhp
  • Gearbox: Manual
  • Colour: Grey
  • CO2: 128 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mazda CX-30 GT Sport Tech has covered 28,278 miles. Priced at £18,000, it is advertised £2,592 above the AskCar estimate of £15,408. The AskCar estimate draws on 1,561 Mazda CX-30 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 161 days ago. The latest MOT recorded 34,958 miles, above the advertised mileage. Check this with the dealer. The latest recorded MOT expires on 6 April 2027. You can find this car at Northampton Motors in West Northamptonshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,592 (16%) over the AskCar estimate of £15,408.

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 1,561 priced Mazda CX-30 adverts across different ages and specifications, as of 5 November 2026.

A 2021 Mazda CX-30 with the 2.0 petrol engine is typically advertised at £13,800: the median of the 109 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 Mazda CX-30 has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,000. 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 5 November 2026: valid until 6 April 2027.

It failed its MOT on 7 April 2026 (nearside front windscreen wiper does not clear the windscreen effectively; offside front windscreen wiper does not clear the windscreen effectively; nearside front inner brake pad(s) less than 1.5 mm thick; and 2 more) and passed later the same day.

Advisories at the latest test: nearside and offside rear brake discs corroded/pitted; nearside front tyre wearing slightly on outer edge; nearside and offside rear shockers slight misting of oil.

Mileage at that test: 34,958 miles. The advert says 28,278 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 7,900 miles lower than the median mileage of a 2021 Mazda CX-30 on AskCar.

Similar cars

19 other 2021 Mazda CX-30 GT Sport Tech 2.0 petrol manual SUVs are for sale at UK dealers, from £11,200 to £16,995, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, red. Mileage: 31,121 miles. Price: £16,000, £2,000 less than this car. Dealer: Stoneacre Gateshead Mazda in Gateshead. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-0abf29c00a98
  • 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, red. Mileage: 31,139 miles. Price: £16,995, £1,005 less than this car. Dealer: Magna Mazda Salisbury in Salisbury. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-db31f884b7c3
  • 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, grey. Mileage: 33,211 miles. Price: £16,495, £1,505 less than this car. Dealer: Struans Mazdasubaru in Perth. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-16fa57a35d4a
  • The nearest: 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, red, 19 miles from this car. Mileage: 58,252 miles. Price: £12,299, £5,701 less than this car. Dealer: cinch in Bedford. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-518ebd352a2c

Browse all Mazda CX-30 cars for sale · 2021 Mazda CX-30 price guide

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Photos

60 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.