Vehicle Details
2018 GMC Sierra 1500
Base
Orange, CA 92867
Is this 2018 GMC Sierra 1500 Base a good deal?
OAV verdict: Unscored
Why: Listed at $15,999, comparable market range $15,999–$15,999. Days on lot: 53 days (market average 70 days).
Market price position
$15,999 · only listing at this price
- Regional range
- $15,999 (0 listings)
- vs. market
- Exact match — no spread
- Comparable vehicles
- 0
Market Retail Price (MRP™)
$15,999This vehicle $15,999 · priced at MRP
MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.
True Retail Value (TRV™)
$21,157This vehicle $15,999 · $5,158 (24%) below TRV
TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-14) — an estimate, not an appraisal. How TRV works.
Similar vehicles recently sold in an estimated 11–63 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.
Westgate Retails
Orange, CA
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
Request availability and out-the-door price
OAV will route your inquiry to Westgate Retails for current availability of this 2018 GMC Sierra 1500 Base 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: Jul 14, 2026Listed by an independent dealer in Orange, CA · On lot for 53 days · VIN verifiable at NHTSA
This used 2018 GMC Sierra 1500 Base is listed at $15,999 by westgate retails in Orange, CA 92867. It has 83,630 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 Unscored due to insufficient comparable data. Based on available similar vehicles in the Orange market, the estimated market range is $15,999 to $15,999.
This vehicle has been on the lot for 53 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 Orange, CA 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.
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 Orange, CA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTN1LEC3JZ904087 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 CA
Comparable Vehicles
581
Average Price
$30,439
Price Range
$8,999–$50,585
Avg Days on Lot
70
Based on 581 comparable 2016-2020 GMC Sierra 1500 listings in CA, the average asking price is $30,439. This listing at $15,999 is $14,440 below average (47% below market). Comparable prices in CA range from $8,999 to $50,585. Similar vehicles spend an average of 70 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in CA
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Base — compare trims below)
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Base
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