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

VIN1GTP9EEL0MZ419083
TrimAT4
Exterior ColorGray
Drivetrain4WD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot35

2021 GMC Sierra 1500

AT4

Unscored
$42,99552,531 mi

Sioux City, IA 51101

Is this 2021 GMC Sierra 1500 AT4 a good deal?

OAV verdict: Unscored

Why: Listed at $42,995, comparable market range $42,995–$42,995. Days on lot: 35 days (market average 45 days).

Market price position

42,995
42,995
42,995

$42,995 · only listing at this price

$42,995 — single data point
Regional range
$42,995 (0 listings)
vs. market
Exact match — no spread
Comparable vehicles
0
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1660 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$37,747 – $37,747

Dealer Info

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Sioux City, IA

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About This 2021 GMC Sierra 1500

Listing updated: May 22, 2026

Listed by an independent dealer in Sioux City, IA · On lot for 35 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 AT4 is listed at $42,995 by an independent dealer in Sioux City, IA 51101. It has 52,531 miles on the odometer. The exterior color is Gray. 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 Unscored due to insufficient comparable data. Based on available similar vehicles in the Sioux City market, the estimated market range is $42,995 to $42,995.

This vehicle has been on the lot for 35 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 Sioux City, IA 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 an independent dealer in Sioux City, IA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EEL0MZ419083 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 IA

Comparable Vehicles

714

Average Price

$38,318

Price Range

$8,990–$62,990

Avg Days on Lot

45

Based on 714 comparable 2019-2023 GMC Sierra 1500 listings in IA, the average asking price is $38,318. This listing at $42,995 is $4,677 above average (12% above market). Comparable prices in IA range from $8,990 to $62,990. Similar vehicles spend an average of 45 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in IA

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)