2018 SEAT Mii prices

There are 13 used 2018 SEAT Mii cars for sale from UK dealers on AskCar, as of 7 November 2026. Typical asking price £6,500 (the median: half cost less, half cost more). The cheapest is £3,950. The middle half are priced between £5,500 and £6,800. Median mileage: about 42,000 miles.

Dealers lowered the asking price on 1 of the 13 2018 SEAT Mii cars in the 14 days to 7 November 2026.

2018 SEAT Mii against other years

A 2019 SEAT Mii car has a typical asking price of £6,900, as of 7 November 2026.

AskCar lists 135 used SEAT Mii across the UK, from 128 dealerships.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 SEAT Mii 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. 11 of the 13 cars listed here meet these rules. Page 2 lists every other 2018 SEAT Mii 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 126 priced SEAT Mii adverts on AskCar as of 7 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 SEAT Mii.

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.

Best value 2018 SEAT Mii: priced furthest below the AskCar estimate

Their asking prices run from £3,950 to £8,795.

Cheapest 2018 SEAT Mii: the lowest asking prices

These 10 are priced £3,950 to £7,619. They have covered 17,337 to 103,617 miles.

Lowest-mileage 2018 SEAT Mii

These 10 have covered 7,000 to 67,000 miles. Their asking prices run from £5,495 to £8,795.

Recently reduced 2018 SEAT Mii: the biggest price reductions in the 14 days to 7 November 2026

The dealer lowered the asking price on this car in the 14 days to 7 November 2026.

Newly advertised 2018 SEAT Mii: first seen by AskCar in the 7 days to 7 November 2026

This car is the most recently advertised.

SEAT Mii prices by year

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