2021 SEAT Mii

Price: £9,998. Fair price: £82 (under 1%) under the AskCar estimate of £10,080, our expected asking price for this car from its model, age, mileage and specification, drawing on 123 priced SEAT Mii adverts on AskCar as of 6 November 2026.

AskCar lists 128 used SEAT Mii from 121 UK dealerships, as of 6 November 2026.

Overview

  • Make: SEAT
  • Model: Mii
  • Version: Auto FWD 5dr (81 bhp)
  • Year: 2021
  • Mileage: 29,292 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 29,292 miles, approximately 6,800 above the typical mileage for its age. Its asking price of £9,998 is £82 below the AskCar estimate of £10,080. The AskCar estimate uses 123 UK dealer adverts for the SEAT Mii, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Kirkcaldy Kia, based in Kirkcaldy. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £82 (under 1%) under the AskCar estimate of £10,080.

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 123 priced SEAT Mii adverts across different ages and specifications, as of 6 November 2026.

Time on sale

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

Price history

AskCar first saw this advert on 5 November 2026 at £9,998. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 28 October 2027.

It has had 6 MOTs. The latest, on 29 October 2026, passed.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing; offside rear tyre slightly damaged/cracking or perishing.

Mileage at that test: 29,292 miles, which matches the advertised 29,292 miles.

Advertised mileage is about 6,800 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

More like this

Photos

20 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.