U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2021 Buick Encore GX

Vehicle Details

VINKL4MMBS29MB131772
TrimPreferred
DrivetrainFWD
Engine1.2L I3
TransmissionCVT
Fuel TypeUnleaded
Inventory Typeused
Days on Lot238

2021 Buick Encore GX

Preferred

Fair Price
$16,95051,242 mi

Elmhurst, IL 60126

Is this 2021 Buick Encore GX Preferred a good deal?

OAV verdict: Fair Price

Why: Listed at $16,950, comparable market range $13,900–$19,970, based on 18 comparable listings. Days on lot: 238 days (market average 59 days).

Market price position

13,900
19,970
16,950

$16,950 · within market range

$13,900comparable$19,970
Regional range
$13,900 – $19,970
vs. market
$3,050 above low · $3,020 below high
Comparable vehicles
18
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1552 days.

Verify before inquiring
  • This listing has been on market about 4.6x longer than typical for similar vehicles (cohort sells in 15–52 days; this one is at 238). Long days-on-lot on a fast-turn cohort can signal title concerns, mechanical issues, or pricing the dealer won't actually honor. Recommend a vehicle history report before spending more time.

Market Breakdown

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

Regional Range$13,900 – $19,970

Dealer Info

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Elmhurst, IL

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About This 2021 Buick Encore GX

Listing updated: May 19, 2026

Listed by a franchise dealer in Elmhurst, IL · On lot for 238 days · VIN verifiable at NHTSA

This used 2021 Buick Encore GX Preferred is listed at $16,950 by a franchise dealer in Elmhurst, IL 60126. It has 51,242 miles on the odometer. It features a FWD drivetrain with a 1.2L I3 engine and CVT transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 18 similar vehicles in the Elmhurst market, the estimated market range is $13,900 to $19,970.

This vehicle has been on the lot for 238 days.

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

Market context

This listing is part of OAV's broader Elmhurst, IL suvs market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

How this deal is rated

OAV compares this 2021 Buick Encore GX 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 Elmhurst, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN KL4MMBS29MB131772 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 Buick Encore GX Market in IL

Comparable Vehicles

469

Average Price

$20,238

Price Range

$10,995–$27,995

Avg Days on Lot

59

Based on 469 comparable 2019-2023 Buick Encore GX listings in IL, the average asking price is $20,238. This listing at $16,950 is $3,288 below average (16% below market). Comparable prices in IL range from $10,995 to $27,995. Similar vehicles spend an average of 59 days on dealer lots in this market.

Similar Buick Encore GX Listings in IL

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Preferred — compare trims below)