The market for the G20/G21 3 Series
Price month by month
The middle asking price of the G20/G21 3 Seriess on sale at the dealers we follow at some point each calendar month, at the price they had at the month's end (today, for this month). We have 1 month of adverts so far, this one included, so this shows only the last few months; a month with fewer than 5 adverts is left out.
Price by year
Middle asking price, and how many are for sale, for each model year. Choose a year to see the cars.
Price by mileage
Middle asking price, and how many are for sale, by the mileage on the advert.
Where they are
Cars for sale now, by the dealer's region. Choose a region to see the cars.
From adverts at the dealers we follow, seen since Oct 2026. Average mileage 51,982 mi. "Typical price" is the middle half of the asking prices of every G20/G21 3 Series for sale, all years together, leaving out the cheapest and dearest quarter; the price by year shows each year's middle price. "Time to sell" counts from when we first saw each advert to when it came down; we can't see the sale itself.