2021 GMC Sierra 1500 SLT
Vehicle Details
SLT
Angleton, TX 77515
Is this 2021 GMC Sierra 1500 SLT a good deal?
OAV verdict: Fair Price
Why: Listed at $33,994, comparable market range $27,351–$40,996, based on 89 comparable listings. Days on lot: 20 days (market average 162 days).
Market price position
$33,994 · within market range
- Comparable range
- $27,351 – $40,996
- vs. market
- $6,643 above low · $7,002 below high
- Comparable vehicles
- 89
Market Retail Price (MRP™)
$34,174This vehicle $33,994 · $180 (1%) below MRP
MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.
True Retail Value (TRV™)
$33,857This vehicle $33,994 · $137 (0%) above TRV
TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-08-05) — an estimate, not an appraisal. How TRV works.
Comparable vehicles nationally recently sold in an estimated 14–56 days.
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.
Gulf Coast Auto Park
Angleton, TX
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
Request availability and out-the-door price
OAV will route your inquiry to Gulf Coast Auto Park for current availability of this 2021 GMC Sierra 1500 SLT and an out-the-door price quote (taxes, fees, addons included).
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
About This 2021 GMC Sierra 1500
Listing updated: Aug 5, 2026Listed by a franchise dealer in Angleton, TX · On lot for 20 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 1500 SLT is listed at $33,994 by gulf coast auto park in Angleton, TX 77515. It has 94,294 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Silver. It features a RWD drivetrain with a 5.3L V8 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 89 comparable listings matched to this vehicle, the estimated market range is $27,351 to $40,996. These comparisons match year, make, and model and may currently span trims and configurations (trim-level matching is rolling out).
This vehicle has been on the lot for 20 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 Angleton, TX 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 (currently across available trims and configurations; trim-level matching is rolling out), filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:
- Great Deal — priced below the typical range for comparable vehicles.
- Fair Price — priced within the expected range for comparable vehicles.
- Overpriced — priced above the typical range for comparable vehicles.
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 Angleton, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP8DED4MG234055 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 processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.
2021 GMC Sierra 1500 Market in TX
TX Market Listings
1,437
Average Price
$39,967
Price Range
$11,900–$102,495
Avg Days on Lot
162
Based on all 1,437 2019-2023 GMC Sierra 1500 listings in the TX market, the average asking price is $39,967. This listing at $33,994 is $5,973 below the broader TX average (15% below the TX average). This is a wider, all-trim comparison across TX; OAV's price verdict above uses the closer comparable set. Comparable prices in TX range from $11,900 to $102,495. Similar vehicles spend an average of 162 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in TX
8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: SLT — compare trims below)
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