Is the $19,488 price on this 2018 GMC Sierra 1500 a good deal?

OAV has not assigned a market verdict to this listing yet because there isn't enough comparable market data.

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

Comparable GMC Sierra 1500 listings in FL spend an average of 78 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in West Palm Beach, FL 33406. VIN: 3GTP1NEC6JG446355. Mileage: 142,089 miles.

2018 GMC Sierra 1500 SLT for Sale in West Palm Beach, FL

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Vehicle Details

VIN3GTP1NEC6JG446355

TrimSLT

Exterior ColorSilver

DrivetrainRWD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot491

SLT

Unscored

$19,488142,089 mi

West Palm Beach, FL 33406

Is this 2018 GMC Sierra 1500 SLT a good deal?

OAV verdict: Unscored

Why: Listed at $19,488. OAV has not found enough comparable listings for a reliable market range or verdict. Days on lot: 491 days (market average 78 days).

Market price position

Limited comparable data — OAV has not assigned a reliable market verdict to this listing yet.

Comparable vehicles nationally recently sold in an estimated 14–57 days.

Verify before inquiring

This listing has been available about 8.6x longer than comparable vehicles typically take to sell (cohort sells in 14–57 days; this one is at 491). Confirm its history, condition, availability, and out-the-door price before proceeding.

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.

Regional Range$24,995 – $32,983

National Car Store

West Palm Beach, FL

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

View all vehicles from national car store →

Request availability and out-the-door price

OAV will route your inquiry to National Car Store for current availability of this 2018 GMC Sierra 1500 SLT and an out-the-door price quote (taxes, fees, addons included).

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

About This 2018 GMC Sierra 1500

Listing updated: Aug 12, 2026

Listed by an independent dealer in West Palm Beach, FL · On lot for 491 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLT is listed at $19,488 by national car store in West Palm Beach, FL 33406. It has 142,089 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Silver. 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 Unscored due to insufficient comparable data. OAV has not assigned a reliable comparable market range for this vehicle yet — the comparable set is too limited.

This vehicle has been on the lot for 491 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 West Palm Beach, FL 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 (currently across available trims and configurations; trim-level matching is rolling out), 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 an independent dealer in West Palm Beach, FL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP1NEC6JG446355 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 within the same geographic market.

2018 GMC Sierra 1500 Market in FL

FL Market Listings

312

Average Price

$26,545

Price Range

$9,890–$47,997

Avg Days on Lot

Based on all 312 2016-2020 GMC Sierra 1500 listings in the FL market, the average asking price is $26,545. Because OAV has not assigned a reliable price verdict to this listing, it does not state how it compares to this broader average. Comparable prices in FL range from $9,890 to $47,997. Similar vehicles spend an average of 78 days on dealer lots in this market.