
Vehicle Details
2018 GMC Sierra 1500
Base
Marietta, GA 30060
Market price position
$13,958 · $442 below market low
- Regional range
- $14,400 – $31,275
- vs. market low
- — $442 (3% below)
- Comparable vehicles
- 5
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.
Dealer Info
Marietta, GA
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About This 2018 GMC Sierra 1500
Listing updated: Apr 25, 2026Listed by a independent dealer in Marietta, GA · On lot for 53 days · VIN verifiable at NHTSA
This used 2018 GMC Sierra 1500 Base is listed at $13,958 by a independent dealer in Marietta, GA 30060. It has 114,386 miles on the odometer. The exterior color is White. It features a RWD drivetrain with a 4.3L V6 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 5 similar vehicles in the Marietta market, the estimated market range is $14,400 to $31,275. The local market range in GA is $14,400 to $31,275.
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).
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 a independent dealer in Marietta, GA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network. The VIN 1GTN1LEC9JZ903140 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 GA
Comparable Vehicles
720
Average Price
$30,507
Price Range
$7,900–$50,000
Avg Days on Lot
39
Based on 720 comparable 2016-2020 GMC Sierra 1500 listings in GA, the average asking price is $30,507. This listing at $13,958 is $16,549 below average (54% below market). Comparable prices in GA range from $7,900 to $50,000. Similar vehicles spend an average of 39 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in GA
8 comparable vehicles with similar year and mileage

2017 GMC Sierra 1500
Brunswick, GA

2017 GMC Sierra 1500
Valdosta, GA

2016 GMC Sierra 1500
Buford, GA

2018 GMC Sierra 1500
Austell, GA

2018 GMC Sierra 1500
Marietta, GA

2018 GMC Sierra 1500
Buford, GA

2016 GMC Sierra 1500
Lawrenceville, GA

2019 GMC Sierra 1500
Smyrna, GA