2021 SEAT Mii

Price: £9,999. Fair price: £65 (under 1%) under the AskCar estimate of £10,064, 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: 29,613 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

With 29,613 miles on the clock, this 2021 SEAT Mii has done roughly 7,100 more miles than a typical 2021 SEAT Mii. The AskCar estimate for this car is £10,064. It is priced at £9,999, which is £65 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 123 SEAT Mii cars across different ages and specifications. We have tracked this advert today. The recorded MOT expired on 16 April 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Faintree Garage Faintree Seat in Shrewsbury. 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: £65 (under 1%) under the AskCar estimate of £10,064.

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 today.

Price history

AskCar first saw this advert on 6 November 2026 at £9,999. 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 6 November 2026: the latest record we hold ran out on 16 April 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 3 November 2026, failed.

It failed on: offside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords.

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: 29,613 miles, which matches the advertised 29,613 miles.

Advertised mileage is about 7,100 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