
Vehicle Details
2018 GMC Sierra 1500 Denali
Denali
Waukesha, WI 53186
Is this 2018 GMC Sierra 1500 Denali Denali a good deal?
OAV verdict: Unscored
Why: Listed at $26,716, comparable market range $29,467–$37,110, based on 4 comparable listings. Days on lot: 27 days (market average 59 days).
Market price position
$26,716 · $2,751 below market low
- Regional range
- $29,467 – $37,110
- vs. market low
- — $2,751 (9% below)
- Comparable vehicles
- 4
Similar vehicles recently sold in an estimated 13–52 days.
What does Demand-Verified mean?
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.
Dealer Info
Waukesha, WI
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About This 2018 GMC Sierra 1500 Denali
Listing updated: May 20, 2026Listed by a franchise dealer in Waukesha, WI · On lot for 27 days · VIN verifiable at NHTSA
This used 2018 GMC Sierra 1500 Denali Denali is listed at $26,716 by a franchise dealer in Waukesha, WI 53186. It has 128,835 miles on the odometer. The exterior color is Black. 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 4 similar vehicles in the Waukesha market, the estimated market range is $29,467 to $37,110. The local market range in WI is $32,257 to $32,257.
This vehicle has been on the lot for 27 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 Waukesha, WI 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 2018 GMC Sierra 1500 Denali 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:
- 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 Waukesha, WI, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU2PEC9JG534439 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.
2018 GMC Sierra 1500 Denali Market in WI
Comparable Vehicles
126
Average Price
$32,313
Price Range
$19,349–$45,345
Avg Days on Lot
59
Based on 126 comparable 2016-2020 GMC Sierra 1500 Denali listings in WI, the average asking price is $32,313. This listing at $26,716 is $5,597 below average (17% below market). Comparable prices in WI range from $19,349 to $45,345. Similar vehicles spend an average of 59 days on dealer lots in this market.
Similar GMC Sierra 1500 Denali Listings in WI
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Denali — compare trims below)

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2019 GMC Sierra 1500 Denali
Denali
Hudson, WI

2020 GMC Sierra 1500 Denali
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2019 GMC Sierra 1500 Denali
Denali
Brookfield, WI

2019 GMC Sierra 1500 Denali
Denali
Beloit, WI

2019 GMC Sierra 1500 Denali
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