2021 SEAT Mii

Price: £10,999. Fair price: £580 (5%) over the AskCar estimate of £10,420, 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: 19,748 miles
  • Fuel: Electric
  • Body: Hatchback, 5 doors, 4 seats
  • Engine: 81 bhp
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: White
  • CO2: 0 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 SEAT Mii has covered 19,748 miles, around 5,500 fewer miles than is typical for its age. Priced at £10,999, it is advertised £580 above the AskCar estimate of £10,420. 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 car for sale 43 days ago. The recorded MOT expired on 17 July 2025, so ask the dealer whether it has been renewed. Its advertised mileage matches the government's MOT record. The seller is WOO Carz, based in Southampton. 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: £580 (5%) over the AskCar estimate of £10,420.

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 43 days.

Price history

AskCar first saw this advert on 25 September 2026 at £10,999. 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 7 November 2026: the latest record we hold ran out on 17 July 2025; ask the dealer for the current MOT.

It has had one MOT, on 18 July 2024, and passed.

There were no advisories at the latest test.

Mileage at that test: 19,557 miles, which matches the advertised 19,748 miles.

Advertised mileage is about 5,500 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

20 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.