2021 SEAT Mii

Price: £9,570. Fair price: £110 (1%) over the AskCar estimate of £9,460, our expected asking price for this car from its model, age, mileage and specification, drawing on 126 priced SEAT Mii adverts on AskCar as of 7 November 2026.

AskCar lists 135 used SEAT Mii from 128 UK dealerships, as of 7 November 2026.

Overview

  • Make: SEAT
  • Model: Mii
  • Version: Auto FWD 5dr (81 bhp)
  • Year: 2021
  • Mileage: 37,226 miles
  • Fuel: Electric
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 81 bhp
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 0 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 SEAT Mii is advertised with 37,226 miles, approximately 12,000 above the typical mileage for its age. The AskCar estimate for this car is £9,460. It is priced at £9,570, which is £110 above that estimate. The AskCar estimate draws on 126 SEAT Mii adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £400. The government's MOT record matches its advertised mileage. You can find this car at Dace Motor Company - Trading Standards Approved in Stockport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £110 (1%) over the AskCar estimate of £9,460.

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 126 priced SEAT Mii adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 2021 SEAT Mii has been on sale for at least 24 days.

Price history

AskCar first saw this advert on 14 October 2026 at £9,970. Its asking price is now £9,570, £400 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

  • 14 October 2026: £9,970
  • 29 October 2026: £9,570

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 16 August 2027.

It has had 3 MOTs. The latest, on 7 August 2026, passed.

Advisories at the latest test: front suspension arm pin or bush worn but not resulting in excessive movement both; rear tyre slightly damaged/cracking or perishing both.

Mileage at that test: 35,804 miles, which matches the advertised 37,226 miles.

Advertised mileage is about 12,000 miles higher than the median mileage of a 2021 SEAT Mii on AskCar.

Browse all SEAT Mii cars for sale · 2021 SEAT Mii price guide

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Photos

40 photos of this car are on its AskCar page.

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.