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65 sales tracked since 28 May 2026 · 8 for sale now
Every 2021 Mii that's come off Autotrader since 28 May 2026, with its final asking price and how long it took to sell.
What each 2021 Mii variant sold for (filled dots) and what the 8 for sale are asking (rings), with monthly medians drawn through them. Click a dot to open the car.
Solid lines: median sold price per month (3+ sales). Dashed lines: median asking price of cars currently for sale, by the month they were listed.
By month sold, all variants
How long sold cars were listed
How many cars were listed each day since tracking began
Asking price range, with the median marked
Listings added and sold each month
8 live listings from Autotrader · from £9,249 · median £9,983
Sold and asking prices against mileage. Each dot is a car; click one to open it.
What 2021 SEAT Mii cars sell for and how many are on Autotrader UK right now. Updated 19 Oct 2026.
The median asking price for a used 2021 SEAT Mii on Autotrader UK is £9,983, across 8 cars for sale as of 19 Oct 2026. The 65 2021 SEAT Mii cars recorded as sold since 28 May 2026 went for a median of £8,980.
The median 2021 SEAT Mii sells within 18 days of being listed on Autotrader, based on 65 recorded sales.
There are 8 used 2021 SEAT Mii cars for sale on Autotrader UK as of 19 Oct 2026. Autotrender has recorded 65 sales of 2021 SEAT Mii cars so far.
Autotrender records every SEAT Mii listing on Autotrader UK twice a day and groups them by registration year. A car counts as sold when its advert is removed, and its sold price is the final asking price before it came off; days to sell run from the advert's listing date to its removal. Medians are used throughout, and figures are only stated once at least 5 sales have been recorded.
Recomputed after every Autotrader scan. Month-by-month trends across all years: SEAT Mii market report · About Autotrender