Vehicle Details
2020 GMC Sierra 1500
AT4
Colchester, CT 06415
Is this 2020 GMC Sierra 1500 AT4 a good deal?
OAV verdict: Unscored
Why: Listed at $40,500, comparable market range $34,753–$38,685, based on 5 comparable listings. Days on lot: 99 days (market average 52 days).
Market price position
$40,500 · $1,815 above market high
- Regional range
- $34,753 – $38,685
- vs. market high
- + $1,815 (5% above)
- Comparable vehicles
- 5
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.
Toyota Of Colchester
Colchester, CT
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 Toyota Of Colchester 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: Jun 20, 2026Listed by a franchise dealer in Colchester, CT · On lot for 99 days · VIN verifiable at NHTSA
This used 2020 GMC Sierra 1500 AT4 is listed at $40,500 by toyota of colchester in Colchester, CT 06415. It has 43,441 miles on the odometer. The exterior color is Blue. 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 Unscored due to insufficient comparable data. Based on 5 similar vehicles in the Colchester market, the estimated market range is $34,753 to $38,685.
This vehicle has been on the lot for 99 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 Colchester, CT 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 a franchise dealer in Colchester, CT, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EED0LZ106414 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 CT
Comparable Vehicles
180
Average Price
$33,579
Price Range
$15,895–$46,997
Avg Days on Lot
52
Based on 180 comparable 2018-2022 GMC Sierra 1500 listings in CT, the average asking price is $33,579. This listing at $40,500 is $6,921 above average (21% above market). Comparable prices in CT range from $15,895 to $46,997. Similar vehicles spend an average of 52 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in CT
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)
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2021 GMC Sierra 1500
AT4
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2021 GMC Sierra 1500
AT4
Waterbury, CT
2021 GMC Sierra 1500
AT4
Bristol, CT
2021 GMC Sierra 1500
AT4
Waterbury, CT
2018 GMC Sierra 1500
Base
Ansonia, CT
2020 GMC Sierra 1500
SLE
Watertown, CT