2021 SEAT Mii

Price: £10,799. Fair price: £162 (1%) under the AskCar estimate of £10,961, 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: 9,888 miles
  • Fuel: Electric
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 81 bhp
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: Red
  • CO2: 0 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 SEAT Mii has covered 9,888 miles, around 15,400 fewer miles than is typical for its age. Its asking price of £10,799 is £162 below the AskCar estimate of £10,961. The AskCar estimate uses 126 UK dealer adverts for the SEAT Mii, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 36 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Fords of Winsford Manchester, based in Manchester. 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: £162 (1%) under the AskCar estimate of £10,961.

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 36 days.

Price history

AskCar first saw this advert on 2 October 2026 at £10,699. Its asking price is now £10,799, £100 more.

Price changes recorded:

  • 2 October 2026: £10,699
  • 12 October 2026: £10,599
  • 17 October 2026: £10,799
  • 27 October 2026: £10,699
  • 31 October 2026: £10,799

Mileage and MOT

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

It has had 3 MOTs. The latest, on 8 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 9,301 miles, which matches the advertised 9,888 miles.

Advertised mileage is about 15,400 miles lower 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

22 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.