2021 SEAT Mii

Price: £10,840. Fair price: £183 (1%) over the AskCar estimate of £10,657, 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: 15,323 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 has covered 15,323 miles, around 10,000 fewer miles than is typical for its age. Priced at £10,840, it is advertised £183 above the AskCar estimate of £10,657. To work out the AskCar estimate, we analyse UK dealer adverts for 126 SEAT Mii cars across different ages and specifications. We first recorded this advert 1 day ago, and its asking price has since fallen by £1,240. Its advertised mileage matches the government's MOT record. The seller is Big Motoring World Leeds, based in Leeds. 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: £183 (1%) over the AskCar estimate of £10,657.

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

AskCar first saw this 2021 SEAT Mii advertised 1 day ago.

Price history

AskCar first saw this advert on 6 November 2026 at £12,080. Its asking price is now £10,840, £1,240 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

  • 6 November 2026: £12,080
  • 7 November 2026: £10,840

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 19 June 2027.

It has had 3 MOTs. The latest, on 4 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 13,854 miles, which matches the advertised 15,323 miles.

Advertised mileage is about 10,000 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

26 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.