Vehicle Details
2021 GMC Sierra 1500
AT4
Chicago, IL 60638
Is this 2021 GMC Sierra 1500 AT4 a good deal?
OAV verdict: Fair Price
Why: Listed at $33,495, comparable market range $24,900–$44,995, based on 22 comparable listings. Days on lot: 41 days (market average 55 days).
Market price position
$33,495 · within market range
- Regional range
- $24,900 – $44,995
- vs. market
- $8,595 above low · $11,500 below high
- Comparable vehicles
- 22
Market Retail Price (MRP™)
$34,948This vehicle $33,495 · $1,453 (4%) below 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™)
$32,437This vehicle $33,495 · $1,058 (3%) above TRV
TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-07-17) — an estimate, not an appraisal. How TRV works.
Similar vehicles recently sold in an estimated 15–53 days.
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges update continuously.
Highend Motors
Chicago, IL
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 Highend Motors for current availability of this 2021 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 2021 GMC Sierra 1500
Listing updated: Jul 17, 2026Listed by an independent dealer in Chicago, IL · On lot for 41 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 1500 AT4 is listed at $33,495 by highend motors in Chicago, IL 60638. It has 132,341 miles on the odometer. It features a 4WD drivetrain with a 6.2L 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 22 similar vehicles in the Chicago market, the estimated market range is $24,900 to $44,995.
This vehicle has been on the lot for 41 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 Chicago, IL 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 2021 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 Chicago, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTP9EEL8MZ191902 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 updated continuously; Price-to-Market analysis uses comparable vehicles within the same geographic market.
2021 GMC Sierra 1500 Market in IL
Comparable Vehicles
1,347
Average Price
$39,239
Price Range
$15,950–$68,800
Avg Days on Lot
55
Based on 1,347 comparable 2019-2023 GMC Sierra 1500 listings in IL, the average asking price is $39,239. This listing at $33,495 is $5,744 below average (15% below market). Comparable prices in IL range from $15,950 to $68,800. Similar vehicles spend an average of 55 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in IL
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)
2019 GMC Sierra 1500
AT4
Tremont, IL
2020 GMC Sierra 1500
AT4
Orland Park, IL
2020 GMC Sierra 1500
AT4
Freeport, IL
2021 GMC Sierra 1500
AT4
Crestwood, IL
2020 GMC Sierra 1500
AT4
Machesney Park, IL
2020 GMC Sierra 1500
AT4
East Dubuque, IL
2020 GMC Sierra 1500
AT4
Carmi, IL
2020 GMC Sierra 1500
AT4
Collinsville, IL