2020 Mazda CX-30 GT Sport Tech prices

There are 37 used 2020 Mazda CX-30 GT Sport Tech cars for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £14,500 (the median: half cost less, half cost more). The cheapest is £9,990. The middle half are priced between £12,800 and £15,000. Median mileage: about 42,000 miles.

Dealers lowered the asking price on more than a third of 2020 Mazda CX-30 GT Sport Tech cars: 16 of the 37 in the 14 days to 8 November 2026.

2020 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 2020 Mazda CX-30 GT Sport Tech cars for sale on 8 November 2026, and are given only where at least 20 cars with a price are for sale.

2020 Mazda CX-30 GT Sport Tech against other years

A 2021 Mazda CX-30 GT Sport Tech car has a typical asking price of £14,500, as of 8 November 2026.

AskCar lists 1,569 used Mazda CX-30 across the UK, from 528 dealerships.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2020 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. 34 of the 36 cars listed here meet these rules. Page 2 lists every other 2020 Mazda CX-30 GT Sport Tech car, cheapest first, including the 2 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,516 priced Mazda CX-30 adverts on AskCar as of 8 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2020 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 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Best value 2020 Mazda CX-30 GT Sport Tech: priced furthest below the AskCar estimate

These 10 are priced 2% to 11% under their AskCar estimate. Their asking prices run from £10,320 to £16,199.

Cheapest 2020 Mazda CX-30 GT Sport Tech: the lowest asking prices

These 10 are priced £9,990 to £13,000. They have covered 40,259 to 86,620 miles.

Lowest-mileage 2020 Mazda CX-30 GT Sport Tech

These 10 have covered 10,480 to 29,980 miles. Their asking prices run from £13,777 to £16,695.

Recently reduced 2020 Mazda CX-30 GT Sport Tech: the biggest price reductions in the 14 days to 8 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 8 November 2026. Their reductions since AskCar first saw them run from £301 to £1,500.

Newly advertised 2020 Mazda CX-30 GT Sport Tech: first seen by AskCar in the 7 days to 8 November 2026

These 3 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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