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 Auto Euro 6 (s/s) 5dr
• Year: 2021
• Mileage: 50,416 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Black
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 50,416 miles, this 2021 Mazda CX-30 GT Sport Tech has covered about 14,400 more miles than other 2021 Mazda CX-30 cars. The dealer is asking £14,490, which is £520 below the AskCar estimate of £15,010. To work out the AskCar estimate, we analyse UK dealer adverts for 1,559 Mazda CX-30 cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 17 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Your Best Car (Bucks), based in Marlow. 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: £520 (3%) under the AskCar estimate of £15,010.

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 17 days.

Price history

AskCar first saw this advert on 18 October 2026 at £14,990. Its asking price is now £14,490, £500 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 18 October 2026: £14,990
• 28 October 2026: £14,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 5 September 2027.

It has had 3 MOTs. The latest, on 20 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,195 miles, which matches the advertised 50,416 miles.

Advertised mileage is about 14,400 miles higher than the median mileage of a 2021 Mazda CX-30 on AskCar.

Similar cars

4 other 2021 Mazda CX-30 GT Sport Tech 2.0 petrol automatic SUVs are for sale at UK dealers, from £15,899 to £21,395, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, blue. Mileage: 32,300 miles. Price: £15,920, £1,430 more than this car. Dealer: Big Motoring World Enfield in Enfield. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-2afa1ad62f1c
• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, blue. Mileage: 32,000 miles. Price: £21,395, £6,905 more than this car. Dealer: Hexagon Cars Of Harrogate in Harrogate. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-1274eb77f6b6
• 2021 Mazda CX-30 GT Sport Tech, 2.0 petrol SUV, silver. Mileage: 29,383 miles. Price: £15,899, £1,409 more than this car. Dealer: EMG Motor Group Honda Letchworth (Norton Way) in Letchworth. AskCar page: https://askcar.co.uk/car/mazda-cx-30-2021-45157ae453b5