2018 GMC Sierra 1500 Denali

Listed by an independent dealer in Woodstock, GA · On lot for 2 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 Denali is listed at $20,394 by selective imports auto sales in Woodstock, GA 30188. It has 135,692 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Black. It features a RWD drivetrain with a 5.3L V8 engine and Automatic transmission.

This vehicle has been on the lot for 2 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477). Verdict methodology ptm-verdict-v1 · snapshot Sep 6, 2026. The patented comparable band is the input; ptm-verdict-v1 is the versioned OAV rule set that turns it into this verdict.

Market context

This listing is part of OAV's broader Woodstock, GA trucks market analysis. OAV compares vehicles by local and regional price-to-market ranges and comparable count; days-on-lot and demand signals are shown separately, not as verdict inputs.

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How this deal is rated

OAV compares this 2018 GMC Sierra 1500 Denali against similar vehicles currently available for sale — same make, model, and year range, using trim where trim data supports it. OAV does not adjust comparables for odometer; on very high-mileage vehicles it withholds a verdict rather than overstate a discount the odometer explains. Based on where this listing falls in that comparable set, it is rated:

• Great Deal — priced below the comparable-range floor by a meaningful margin (OAV's minimum-gap rule); a listing below the floor by less than that margin is Fair Price.
• 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 can surface additional verification signals, but commercial participation never changes a listing's Price-to-Market verdict, eligibility, ranking, or confidence.

How this listing is verified

This vehicle listing was aggregated from an independent dealer in Woodstock, GA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP1PEC1JG512905 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.

2018 GMC Sierra 1500 Denali Market in GA

Based on all 51 2016-2020 GMC Sierra 1500 Denali listings in the GA market. Because OAV has not assigned a reliable price verdict to this listing, it does not state how it compares to this broader average. Similar vehicles spend an average of 58 days on dealer lots in this market.

Similar GMC Sierra 1500 Denali Listings in GA

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: Denali — compare trims below)

This is a broad, statewide same-model set (any trim, mileage, or title) — not the qualified comparable cohort behind the verdict above; lower prices here typically reflect a different trim, higher mileage, or a branded title.