U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2021 GMC Sierra 1500

Vehicle Details

VIN1GTP9EEL8MZ206852
TrimAT4
Exterior ColorBlack
Drivetrain4WD
Engine6.2L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot7

2021 GMC Sierra 1500

AT4

Overpriced
$46,67650,373 mi

Capitol Heights, MD 20743

Is this 2021 GMC Sierra 1500 AT4 a good deal?

OAV verdict: Overpriced

Why: Listed at $46,676, comparable market range $33,995–$44,376, based on 26 comparable listings. Days on lot: 7 days (market average 52 days).

Market price position

33,995
44,376
46,676

$46,676 · $2,300 above market high

$33,995comparable$44,376
Regional range
$33,995 – $44,376
vs. market high
+ $2,300 (5% above)
Comparable vehicles
26
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$33,995 – $44,376

Dealer Info

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Capitol Heights, MD

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About This 2021 GMC Sierra 1500

Listing updated: May 19, 2026

Listed by a franchise dealer in Capitol Heights, MD · On lot for 7 days · VIN verifiable at NHTSA

This used 2021 GMC Sierra 1500 AT4 is listed at $46,676 by a franchise dealer in Capitol Heights, MD 20743. It has 50,373 miles on the odometer. The exterior color is Black. It features a 4WD drivetrain with a 6.2L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Overpriced — priced above market value. Based on 26 similar vehicles in the Capitol Heights market, the estimated market range is $33,995 to $44,376.

This vehicle has been on the lot for 7 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 Capitol Heights, MD 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:

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 Capitol Heights, MD, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EEL8MZ206852 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 MD

Comparable Vehicles

441

Average Price

$41,027

Price Range

$21,000–$65,700

Avg Days on Lot

52

Based on 441 comparable 2019-2023 GMC Sierra 1500 listings in MD, the average asking price is $41,027. This listing at $46,676 is $5,649 above average (14% above market). Comparable prices in MD range from $21,000 to $65,700. Similar vehicles spend an average of 52 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in MD

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