Is the $20,950 price on this 2018 GMC Sierra 1500 a good deal?

OAV rates this as a Great Deal because the asking price of $20,950 is below the typical market range for this vehicle.

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

Based on 363 comparable listings in CO, the average asking price for a 2016-2020 GMC Sierra 1500 is $28,822, with prices ranging from $12,794 to $43,995.

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

Comparable GMC Sierra 1500 listings in CO spend an average of 46 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in Denver, CO 80231. VIN: 3GTU2MEC6JG249955. Mileage: 72,999 miles.

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

OAV's Price-to-Market analysis estimates the fair market range is $23,995 to $27,571, based on 4 comparable vehicles.

Vehicle Details

VIN3GTU2MEC6JG249955

TrimSLE

Exterior ColorWhite

Drivetrain4WD

Engine4.3L V6

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot12

2018 GMC Sierra 1500

SLE

Unscored

$20,95072,999 mi

Denver, CO 80231

Is this 2018 GMC Sierra 1500 SLE a good deal?

OAV verdict: Unscored

Why: Listed at $20,950, comparable market range $23,995–$27,571, based on 4 comparable listings. Days on lot: 12 days (market average 46 days).

Market price position

Lowest comparable ($)

23,995

Highest comparable ($)

27,571

This vehicle's price ($)

20,950

$20,950 · $3,045 below market low

$23,995comparable$27,571

Regional range: $23,995 – $27,571
vs. market low: — $3,045 (13% below)
Comparable vehicles: 4

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 14–63 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$23,995 – $27,571

Dealer Info

Hidden

Denver, CO

This dealer is not yet on OAV

Request a connection and we'll notify the dealer you're interested

View all vehicles from this independent dealer in Denver, CO →

About This 2018 GMC Sierra 1500

Listing updated: May 19, 2026

Listed by an independent dealer in Denver, CO · On lot for 12 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLE is listed at $20,950 by an independent dealer in Denver, CO 80231. It has 72,999 miles on the odometer. The exterior color is White. It features a 4WD drivetrain with a 4.3L V6 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 Denver market, the estimated market range is $23,995 to $27,571.

This vehicle has been on the lot for 12 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 Denver, CO 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 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 Denver, CO, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU2MEC6JG249955 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 Market in CO

Comparable Vehicles

363

Average Price

$28,822

Price Range

$12,794–$43,995

Avg Days on Lot

Based on 363 comparable 2016-2020 GMC Sierra 1500 listings in CO, the average asking price is $28,822. This listing at $20,950 is $7,872 below average (27% below market). Comparable prices in CO range from $12,794 to $43,995. Similar vehicles spend an average of 46 days on dealer lots in this market.