Is the $21,900 price on this 2018 GMC Sierra 1500 a good deal?

OAV rates this as a Great Deal because the asking price of $21,900 is below the typical market range for this vehicle.

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

Based on 429 comparable listings in TN, the average asking price for a 2016-2020 GMC Sierra 1500 is $30,086, with prices ranging from $11,795 to $45,991.

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

Comparable GMC Sierra 1500 listings in TN spend an average of 66 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in Nashville, TN 37211. VIN: 3GTP1NEC0JG448425. Mileage: 87,500 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 $28,875 to $31,007, based on 3 comparable vehicles.

Vehicle Details

VIN3GTP1NEC0JG448425

TrimSLT

Exterior ColorWhite

DrivetrainRWD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot280

Days on Market325

2018 GMC Sierra 1500

SLT

Unscored

$21,90087,500 miles

Nashville, TN 37211

Market price position

Lowest comparable ($)

28,875

Highest comparable ($)

31,007

This vehicle's price ($)

21,900

$21,900 · $6,975 below market low

$28,875 – $31,007 comparable

Regional range: $28,875 – $31,007
vs. market low: — $6,975 (24% below)
Comparable vehicles: 3

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 14–71 days.

Verify before inquiring

This listing has been on market about 3.9x longer than typical for similar vehicles (cohort sells in 14–71 days; this one is at 280). Long days-on-lot on a fast-turn cohort can signal title concerns, mechanical issues, or pricing the dealer won't actually honor. Recommend a vehicle history report before spending more time.

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$28,875 – $31,007

Regional Range$14,995 – $32,945

Dealer Info

Hidden

Nashville, TN

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About This 2018 GMC Sierra 1500

Listing updated: May 6, 2026

Listed by an independent dealer in Nashville, TN · On lot for 280 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLT is listed at $21,900 by an independent dealer in Nashville, TN 37211. It has 87,500 miles on the odometer. The exterior color is White. 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 a Great Deal — priced below market value. Based on 3 similar vehicles in the Nashville market, the estimated market range is $28,875 to $31,007. The local market range in TN is $28,875 to $31,007.

This vehicle has been on the lot for 280 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 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 Nashville, TN, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP1NEC0JG448425 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 TN

Comparable Vehicles

429

Average Price

$30,086

Price Range

$11,795–$45,991

Avg Days on Lot

Based on 429 comparable 2016-2020 GMC Sierra 1500 listings in TN, the average asking price is $30,086. This listing at $21,900 is $8,186 below average (27% below market). Comparable prices in TN range from $11,795 to $45,991. Similar vehicles spend an average of 66 days on dealer lots in this market.