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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

2020 GMC Sierra 1500 SLT

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Vehicle Details

VIN3GTP8DED4LG355005
TrimSLT
Exterior ColorBlack
DrivetrainRWD
Engine5.3L V8
TransmissionAutomatic
Fuel TypeUnleaded
Inventory Typeused
Days on Lot3

SLT

Fair Price
$33,94481,790 mi

Lighthouse Point, FL 33064

Is this 2020 GMC Sierra 1500 SLT a good deal?

OAV verdict: Fair Price

Why: Listed at $33,944, comparable market range $24,900–$41,725, based on 14 comparable listings. Days on lot: 3 days (market average 75 days).

Market price position

$33,944 · within market range

Comparable range
$24,900 – $41,725
vs. market
$9,044 above low · $7,781 below high
Comparable vehicles
14

Market Retail Price (MRP™)

$33,313

This vehicle $33,944 · $631 (2%) above 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™)

$34,421

This vehicle $33,944 · $477 (1%) below TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-31) — an estimate, not an appraisal. How TRV works.

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 1551 days.

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.

Local Range$36,035 – $36,035
Regional Range$24,900 – $41,725

Sheehan Buick Gmc

Lighthouse Point, FL

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

About This 2020 GMC Sierra 1500

Listing updated: Jul 31, 2026

Listed by a franchise dealer in Lighthouse Point, FL · On lot for 3 days · VIN verifiable at NHTSA

This used 2020 GMC Sierra 1500 SLT is listed at $33,944 by sheehan buick gmc in Lighthouse Point, FL 33064. It has 81,790 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Black. 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 Fair Price — priced at market value. Based on 14 comparable listings matched to this vehicle, the estimated market range is $24,900 to $41,725. These comparisons match year, make, and model and may currently span trims and configurations (trim-level matching is rolling out).

This vehicle has been on the lot for 3 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 Lighthouse Point, 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 2020 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 a franchise dealer in Lighthouse Point, FL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTP8DED4LG355005 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.

2020 GMC Sierra 1500 Market in FL

FL Market Listings

458

Average Price

$32,526

Price Range

$12,999–$68,790

Avg Days on Lot

75

Based on all 458 2018-2022 GMC Sierra 1500 listings in the FL market, the average asking price is $32,526. This listing at $33,944 is $1,418 above the broader FL average (4% above the FL average). This is a wider, all-trim comparison across FL; OAV's price verdict above uses the closer comparable set. Comparable prices in FL range from $12,999 to $68,790. Similar vehicles spend an average of 75 days on dealer lots in this market.

Similar GMC Sierra 1500 Listings in FL

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: SLT — compare trims below)