Vehicle Details
2020 GMC Sierra 1500
AT4
Marietta, GA 30060
Is this 2020 GMC Sierra 1500 AT4 a good deal?
OAV verdict: Fair Price
Why: Listed at $35,400, comparable market range $32,229–$46,437, based on 28 comparable listings. Days on lot: 21 days (market average 41 days).
Market price position
$35,400 · within market range
- Regional range
- $32,229 – $46,437
- vs. market
- $3,171 above low · $11,037 below high
- Comparable vehicles
- 28
Similar vehicles recently sold in an estimated 17–60 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.
Legacy Motorcars
Marietta, GA
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Request availability and out-the-door price
OAV will route your inquiry to Legacy Motorcars for current availability of this 2020 GMC Sierra 1500 AT4 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 2020 GMC Sierra 1500
Listing updated: Jul 2, 2026Listed by an independent dealer in Marietta, GA · On lot for 21 days · VIN verifiable at NHTSA
This used 2020 GMC Sierra 1500 AT4 is listed at $35,400 by legacy motorcars in Marietta, GA 30060. It has 82,870 miles on the odometer. The exterior color is Gray. It features a 4WD drivetrain with a 5.3L V8 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 28 similar vehicles in the Marietta market, the estimated market range is $32,229 to $46,437.
This vehicle has been on the lot for 21 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 Marietta, GA 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 2020 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 Marietta, GA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EED5LZ136069 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.
2020 GMC Sierra 1500 Market in GA
Comparable Vehicles
1,298
Average Price
$37,748
Price Range
$8,000–$65,939
Avg Days on Lot
41
Based on 1,298 comparable 2018-2022 GMC Sierra 1500 listings in GA, the average asking price is $37,748. This listing at $35,400 is $2,348 below average (6% below market). Comparable prices in GA range from $8,000 to $65,939. Similar vehicles spend an average of 41 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in GA
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)
2021 GMC Sierra 1500
AT4
Buford, GA
2021 GMC Sierra 1500
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Duluth, GA
2021 GMC Sierra 1500
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Newnan, GA
2021 GMC Sierra 1500
AT4
Sandy Springs, GA
2021 GMC Sierra 1500
AT4
Waycross, GA
2021 GMC Sierra 1500
AT4
Atlanta, GA
2019 GMC Sierra 1500
AT4
Athens, GA
2019 GMC Sierra 1500
AT4
Austell, GA