U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
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Vehicle Details

VIN3GTU9DED7MG238794
TrimSLT
Exterior ColorWhite
Drivetrain4WD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot93

2021 GMC Sierra 1500

SLT

Great Deal
$23,372163,448 mi

Collinsville, IL 62234

Is this 2021 GMC Sierra 1500 SLT a good deal?

OAV verdict: Great Deal

Why: Listed at $23,372, comparable market range $27,999–$40,372, based on 22 comparable listings. Days on lot: 93 days (market average 54 days).

Market price position

27,999
40,372
23,372

$23,372 · $4,627 below market low

$27,999comparable$40,372
Regional range
$27,999 – $40,372
vs. market low
— $4,627 (17% below)
Comparable vehicles
22
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1670 days.

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$27,999 – $40,372

Laura Auto Group

Collinsville, IL

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

View all vehicles from laura auto group

About This 2021 GMC Sierra 1500

Listing updated: May 31, 2026

Listed by a franchise dealer in Collinsville, IL · On lot for 93 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 SLT is listed at $23,372 by laura auto group in Collinsville, IL 62234. It has 163,448 miles on the odometer. The exterior color is White. It features a 4WD drivetrain with a 5.3L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as a Great Deal — priced below market value. Based on 22 similar vehicles in the Collinsville market, the estimated market range is $27,999 to $40,372.

This vehicle has been on the lot for 93 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 Collinsville, IL trucks 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 GMC Sierra 1500 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:

Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Collinsville, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU9DED7MG238794 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 GMC Sierra 1500 Market in IL

Comparable Vehicles

1,281

Average Price

$39,124

Price Range

$14,850–$60,927

Avg Days on Lot

54

Based on 1,281 comparable 2019-2023 GMC Sierra 1500 listings in IL, the average asking price is $39,124. This listing at $23,372 is $15,752 below average (40% below market). Comparable prices in IL range from $14,850 to $60,927. Similar vehicles spend an average of 54 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in IL

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