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1 sale tracked since 12 Jun 2026 · 0 for sale now
Every 2021 Sei that's come off Autotrader since 12 Jun 2026, with its final asking price and how long it took to sell.
What each 2021 Sei variant sold for (filled dots) and what the 0 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
Listings added and sold each month
0 live listings from Autotrader
Nothing is listed for sale right now.
Sold and asking prices against mileage. Each dot is a car; click one to open it.
What 2021 Westfield Sei cars sell for and how many are on Autotrader UK right now. Updated 20 Oct 2026.
There are 0 used 2021 Westfield Sei cars for sale on Autotrader UK as of 20 Oct 2026. Autotrender has recorded 1 sale of 2021 Westfield Sei cars so far.
Autotrender records every Westfield Sei 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: Westfield Sei market report · About Autotrender