U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology · Patent Pending for Additional Innovations
OAV
2021 BMW 3 Series

Vehicle Details

VIN3MW5R7J03M8B98438
Trim330i
Exterior ColorBlue
Drivetrain4WD
Engine2.0L I4
TransmissionAutomatic
Fuel TypePremium Unleaded
Inventory Typeused
MSRP$25,495
Days on Lot28
Days on Market33

2021 BMW 3 Series

330i

Fair Price
$25,49574,445 miles

Westport, CT 06880

Market price position

16,250
31,995
25,495

$25,495 · within market range

$16,250comparable$31,995
Regional range
$16,250 – $31,995
vs. market
$9,245 above low · $6,500 below high
Comparable vehicles
62

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.

Local Range$25,144 – $25,144
Regional Range$16,250 – $31,995

Dealer Info

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Westport, CT

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About This 2021 BMW 3 Series

Listing updated: Apr 25, 2026

Listed by a franchise dealer in Westport, CT · On lot for 28 days · VIN verifiable at NHTSA

This used 2021 BMW 3 Series 330i is listed at $25,495 by a franchise dealer in Westport, CT 06880. It has 74,445 miles on the odometer. The exterior color is Blue. It features a 4WD drivetrain with a 2.0L I4 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 62 similar vehicles in the Westport market, the estimated market range is $16,250 to $31,995. The local market range in CT is $25,144 to $25,144.

This vehicle has been on the lot for 28 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

How this deal is rated

OAV compares this 2021 BMW 3 Series against similar vehicles currently available in the local and regional market — same make, model, and year range, filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:

This rating refreshes daily as inventory enters and leaves the market. The dealer on this listing has not yet activated on OAV, so the business name and contact details are anonymized here. Activated (paying) dealers appear with their verified business name and a Verified badge.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Westport, CT, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network. The VIN 3MW5R7J03M8B98438 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.

Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is refreshed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2021 BMW 3 Series Market in CT

Comparable Vehicles

132

Average Price

$31,690

Price Range

$17,790–$54,997

Avg Days on Lot

52

Based on 132 comparable 2019-2023 BMW 3 Series listings in CT, the average asking price is $31,690. This listing at $25,495 is $6,195 below average (20% below market). Comparable prices in CT range from $17,790 to $54,997. Similar vehicles spend an average of 52 days on dealer lots in this market.

Similar BMW 3 Series Listings in CT

8 comparable vehicles with similar year and mileage