2021 Mazda CX-30 GT Sport Tech prices

There are 23 used 2021 Mazda CX-30 GT Sport Tech cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £14,500 (the median: half cost less, half cost more). The cheapest is £11,200. The middle half are priced between £13,300 and £16,000. Median mileage: about 41,000 miles.

Dealers lowered the asking price on more than half of 2021 Mazda CX-30 GT Sport Tech cars: 12 of the 23 in the 14 days to 9 November 2026.

2021 Mazda CX-30 GT Sport Tech prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
2.0 petrol£14,500Too few for saleToo few for saleToo few for saleToo few for sale

Typical asking prices are of 2021 Mazda CX-30 GT Sport Tech cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.

2021 Mazda CX-30 GT Sport Tech against other years

A 2020 Mazda CX-30 GT Sport Tech car has a typical asking price of £14,500 and a 2022 one £16,200, as of 9 November 2026.

AskCar lists 1,520 used Mazda CX-30 across the UK, from 505 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2021 Mazda CX-30 GT Sport Tech cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. All 21 cars listed here meet these rules. Page 2 lists every other 2021 Mazda CX-30 GT Sport Tech car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,499 priced Mazda CX-30 adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Mazda CX-30 GT Sport Tech.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2021 Mazda CX-30 GT Sport Tech: priced furthest below the AskCar estimate

These 10 are priced 2% to 6% under their AskCar estimate. Their asking prices run from £11,200 to £17,500.

Cheapest 2021 Mazda CX-30 GT Sport Tech: the lowest asking prices

These 10 are priced £11,200 to £13,850. They have covered 36,129 to 82,000 miles.

Lowest-mileage 2021 Mazda CX-30 GT Sport Tech

These 10 have covered 12,267 to 41,073 miles. Their asking prices run from £13,432 to £17,500.

Recently reduced 2021 Mazda CX-30 GT Sport Tech: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £500 to £1,250.

Newly advertised 2021 Mazda CX-30 GT Sport Tech: first seen by AskCar in the 7 days to 9 November 2026

This car is the most recently advertised.

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