2021 BMW 3 SeriesUsed Pricing, Value & 60-Day Forecast

Used sedan, 1 trim

Live market pricing and AI-powered 60-day price forecasts across every 2021 BMW 3 Series trim CarCast tracks. Anchored to the Manheim Used Vehicle Value Index and BLS used-car CPI. Informational analytics, not financial advice.

Stable trend

Headline trim: 330i

Want a forecast for YOUR exact vehicle?

Pick any year, make, model and trim — paid users get a custom 60-day AI price forecast in minutes.

Price range

$23,916 – $23,916

across 1 indexable trim

Headline trim

330i

$23,916 · 349 avg listings

4-week forecast

$23,946

+0.1% on headline trim

60-day forecast

$23,955

+0.2% on headline trim

Median days on market

119 days

last 90 days, n=1,204 listings

Headline forecast uses the most-listed indexable trim (330i). Per-trim forecasts in the table below are computed independently — no blind averaging across trims (condition and option-pack variance makes a model-level average misleading).

2021 BMW 3 Series trim comparison

Sorted by listing volume
TrimCurrent price30-day forecast60-day forecastAvg listingsOpen
330iHeadline$23,916+0.1%+0.2%349See forecast →

Market context

Used-car market benchmarks

MUVVI (wholesale)

Sep 2026

205.9-0.6% YoY

Source: Cox Automotive / Manheim

CPI: Used cars

Sep 2026

184.4-1.5% YoY

Source: Bureau of Labor Statistics (via FRED)

Top 2021 BMW 3 Series trims

Other BMW 3 Series model years

Forecasts and trend classifications are informational analytics only and do not constitute financial advice or a recommendation to purchase, hold, or sell any vehicle. Individual market conditions vary.

Track 2021 BMW 3 Series prices across every trim

Get price alerts, weekly market updates, and full access to 60-day forecasts for every trim CarCast tracks.