Is the $28,999 price on this 2018 GMC Sierra 1500 Denali a good deal?

OAV rates this as a Great Deal because the asking price of $28,999 is below the typical market range for this vehicle.

What is the average price for a 2018 GMC Sierra 1500 Denali in WY?

Based on 33 comparable listings in WY, the average asking price for a 2016-2020 GMC Sierra 1500 Denali is $33,139, with prices ranging from $23,932 to $42,995.

How long does a 2018 GMC Sierra 1500 Denali typically stay on dealer lots?

Comparable GMC Sierra 1500 Denali listings in WY spend an average of 30 days on dealer lots.

Where is this 2018 GMC Sierra 1500 Denali located?

This vehicle is listed in Casper, WY 82601. VIN: 3GTU2PEC8JG100044. Mileage: 100,693 miles.

What is the fair market price range for this 2018 GMC Sierra 1500 Denali?

OAV's Price-to-Market analysis estimates the fair market range is $29,862 to $31,800, based on 3 comparable vehicles.

Vehicle Details

VIN3GTU2PEC8JG100044

TrimDenali

Exterior ColorPurple

Drivetrain4WD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot83

Days on Market676

2018 GMC Sierra 1500 Denali

Denali

Unscored

$28,999100,693 miles

Casper, WY 82601

Market price position

Lowest comparable ($)

29,862

Highest comparable ($)

31,800

This vehicle's price ($)

28,999

$28,999 · $863 below market low

$29,862comparable$31,800

Regional range: $29,862 – $31,800
vs. market low: — $863 (3% below)
Comparable vehicles: 3

Demand-Verified· Backed by recent sales data

Faster-than-average sell-through

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.

Local Range$29,862 – $31,800

Regional Range$29,862 – $31,800

Dealer Info

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Casper, WY

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About This 2018 GMC Sierra 1500 Denali

Listing updated: May 7, 2026

Listed by an independent dealer in Casper, WY · On lot for 83 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 Denali Denali is listed at $28,999 by an independent dealer in Casper, WY 82601. It has 100,693 miles on the odometer. The exterior color is Purple. 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 a Great Deal — priced below market value. Based on 3 similar vehicles in the Casper market, the estimated market range is $29,862 to $31,800. The local market range in WY is $29,862 to $31,800.

This vehicle has been on the lot for 83 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

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.

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 an independent dealer in Casper, WY, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU2PEC8JG100044 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 WY

Comparable Vehicles

Average Price

$33,139

Price Range

$23,932–$42,995

Avg Days on Lot

Based on 33 comparable 2016-2020 GMC Sierra 1500 Denali listings in WY, the average asking price is $33,139. This listing at $28,999 is $4,140 below average (12% below market). Comparable prices in WY range from $23,932 to $42,995. Similar vehicles spend an average of 30 days on dealer lots in this market.