2021 Mazda CX-30 2.0 GT Sport Tech

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: 40,537 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 183 bhp
• Gearbox: Manual
• Colour: Black
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mazda CX-30 GT Sport Tech has covered 40,537 miles, around 4,500 more miles than is typical for its age. The dealer is asking £13,850, which is £486 below the AskCar estimate of £14,336. To work out the AskCar estimate, we analyse UK dealer adverts for 1,559 Mazda CX-30 cars across different ages and specifications. This car was first seen in our listings data 11 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Car Planet Barnet in New Southgate. 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: £486 (3%) under the AskCar estimate of £14,336.

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 1,559 priced Mazda CX-30 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Mazda CX-30 with the 2.0 petrol engine is typically advertised at £13,900: the median of the 110 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Mazda CX-30 has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 24 October 2026 at £13,850. 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 3 October 2027.

It has had 4 MOTs. The latest, on 24 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,412 miles, which matches the advertised 40,537 miles.

Advertised mileage is about 4,500 miles higher 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 £11,260 to £18,000, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, grey. Mileage: 41,134 miles. Price: £13,199, £651 less than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-29be1e89b355
• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, grey. Mileage: 38,493 miles. Price: £15,478, £1,628 more than this car. Dealer: Vertu Hyundai Edinburgh West in Edinburgh. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-5ce555195d52
• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, grey. Mileage: 43,464 miles. Price: £15,995, £2,145 more than this car. Dealer: JT Hughes Telford Mazda in Telford. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-0e164b8f69e5

• The nearest: 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, red, 37 miles from this car. Mileage: 51,995 miles. Price: £13,000, £850 less than this car. Dealer: Surrey Specialist Cars in Guildford. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-4d005c479161