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

Best Priced GMC in Illinois

The best priced GMC vehicles in Illinois are vehicles currently listed below their typical market range, based on local comparables and days-on-lot velocity. These vehicles are ranked based on how far below their expected market range they fall and how quickly similar vehicles are selling.

Market snapshot · August 20, 2026

OAV.io analyzes millions of vehicle listings using RetailVision™ market data to identify vehicles priced below expected market ranges based on year, make, model, trim (when available), and local comparables.

OAV helps determine if a vehicle is a good deal by comparing it to similar listings and expected sell-through rates.

According to RetailVision™ data, OAV is currently analyzing approximately 10,500 GMC vehicles across the Illinois market.

Total GMC

10,255

Average Price

$53,264

Price Range

$3,573–$144,900

Avg Days on Lot

82

How OAV Identifies Deals

OAV uses RetailVision™ market data to analyze current listings, historical sales patterns, and local market conditions. Vehicles are ranked based on pricing versus comparable listings in the same region and expected sell-through velocity.

  • Millions of local retail comparables across U.S. markets.
  • Vehicles compared on year, make, model, and trim (when available) within the local and regional market.
  • Real price-to-market ranges from regularly refreshed market data.
  • Days on lot incorporated as a sell-through velocity signal.
  • Listings priced below their typical market range surface as undervalued — a great deal or a good deal compared to similar vehicles in the local market.
  • Listings within the typical range surface as fairly priced — in line with what comparable vehicles are listed for locally.
  • Listings priced above the typical range surface as above market — higher than what comparable vehicles are typically listed for in the area.
  • Dealer business information is public on every profile. OAV-claimed dealers manage their profile directly and route inquiries through OAV.

This helps identify undervalued vehicles and determine whether a listing represents a great deal or a good deal in its local market.

Powered by OAV's patented vehicle market standardization technology (U.S. Patent No. 12,236,477).

Learn how OAV identifies Demand-Verified Deals™

What makes OAV different from Cars.com, AutoTrader, and Edmunds

Cars.com, AutoTrader, and Edmunds are vehicle-listing marketplaces where shoppers browse inventory. OAV is the answer-engine layer above the marketplace: it ranks vehicles using price-to-market analysis, local comparable ranges, days-on-lot, comparable count, and demand and velocity signals from similar vehicles — surfacing the ones priced below their typical market range and supported by recent sell-through. OAV is built for the next car-shopping behavior: asking which vehicle to buy, not just browsing inventory.

GMC market summary — Illinois

MarketIllinois
Body typeGMC
Listings analyzed10,255
Average price$53,264
Price range$3,573 – $144,900
Average days on lot82 days
Ranking signalsPrice-to-market, year, mileage, days-on-lot, comparable count
Refresh cadenceDaily

Top Demand-Verified Deals in Illinois

These listings combine below-market pricing with recent sell-through evidence: comparable vehicles sold faster than the local baseline, and each of these listings is still within the cohort’s typical selling window.

Demand-Verified reflects sell-through velocity evidence and may appear separately from OAV's price-to-market deal badge. Learn how Demand-Verified works.

VehiclePriceTypical RangePTM GapListing DOLCohort Typical (p75)Typical Sell TimeDemand SignalPTM Comparables
2014 GMC Terrain$4,400$5,016–$11,99948.3% below7 days48 days21 days · range 10–48Faster recent sell-through17 PTM comps

Median sell-time and Demand-Verified labels reflect aggregated cohort data.

Best Overall GMC in Illinois

Top picks ranked by composite score: PTM gap, year, mileage, days on lot, and comparable count.

Cheapest Great Deals on GMC in Illinois

Lowest-priced listings flagged as Great Deal by OAV's Price-to-Market analysis.

OAV answers these questions

What are the best priced GMC vehicles in Illinois?
OAV ranks GMC vehicles in Illinois by how far below their typical market range they are listed, using local comparable vehicles and days-on-lot velocity. Listings labeled Great Deal sit below the comparable range; Fair Price sits within it.
Which GMC vehicles in Illinois are priced below market?
GMC vehicles flagged as undervalued are priced below the typical range for comparable GMC vehicles in Illinois. The "Top Deals" section on every market page surfaces these first, with the percentage gap from the typical range shown per listing.
Which listings are Demand-Verified in Illinois?
A listing is Demand-Verified when the matched sold cohort of similar vehicles is moving faster than its market baseline, the cohort meets minimum-sample and freshness requirements, and this specific listing has not aged beyond the cohort's typical selling window. It is sell-through evidence about demand, and is separate from OAV's price-to-market verdict.
Which GMC vehicles are undervalued compared with local comparables in Illinois?
OAV's Price-to-Market analysis evaluates every eligible listing against similar GMC vehicles in Illinois, using year, make, model, geography, and available configuration attributes, with mileage-aware adjustments and trim/configuration matching applied where sufficient comparable data supports them. Undervalued listings price below the typical comparable range and are surfaced as Great Deals.

How OAV works — common questions

How does OAV find cars priced below market?
OAV compares each listing against similar vehicles currently for sale in the local and regional market — using year, make, model, geography, and available configuration attributes, with mileage-aware adjustments and trim/configuration matching applied where sufficient comparable data supports them — to compute a price-to-market range. Listings priced below the bottom of their typical range are flagged as undervalued, surfaced as Great Deals, and shown first in every market view.
What makes a Demand-Verified Deal different from a cheap listing?
A cheap listing is just priced low. The Demand-Verified badge is sell-through evidence: the listing's similar-vehicle sold cohort is moving faster than its market baseline, and this listing hasn't aged beyond that cohort's typical selling window — it is separate from OAV's price verdict. A Demand-Verified Deal combines both: the Demand-Verified badge AND a price below the comparable market range. The price signal says it's cheap; the demand signal says the market is actually buying at that price.
Does OAV use local market comparables?
Yes. Every listing is benchmarked against millions of comparable retail listings in the same metro and broader region — never national averages. A truck priced $2,000 below market in Dallas is compared against Dallas trucks; an EV priced below market in Los Angeles is compared against LA EVs. Local comparables make the price-to-market math meaningful.
Why does days-on-lot matter when shopping for used cars?
How long a vehicle sits helps show whether the market is actually buying. OAV compares a listing's days-on-lot to the sold cohort of similar vehicles: when comparable vehicles have been selling quickly and this listing is still within that cohort's typical selling window, it corroborates real demand. A listing sitting far longer than its cohort typically takes to sell is the opposite signal — worth confirming its history, condition, and price before assuming it's a deal.
Can OAV help find trucks, SUVs, or EVs priced below market?
Yes — body-type-specific market views are available for trucks, SUVs, sedans, and EVs in every major U.S. metro and ZIP code. Each view ranks listings by how far below the typical range they're priced, includes Demand-Verified Deals where sell-through evidence supports the label, and shows local comparable ranges + days-on-lot per listing. Start at the homepage or any city or ZIP page.

Explore more markets

All GMC in Illinois

Showing the 24 best-priced GMC from 10,255 active listings.

No Photo

2014 GMC Terrain

Bloomington, IL

UnscoredInsufficient · 0
$3,573188,866 mi

Comparison scope: Bloomington, IL area

Bloomington, IL

No Photo

2002 GMC Envoy

Gurnee, IL

UnscoredInsufficient · 0
$3,854197,488 mi

Comparison scope: Gurnee, IL area

Gurnee, IL

Also available at 1 other IL location

No Photo

2002 GMC Envoy

Bloomington, IL

UnscoredInsufficient · 0
$3,900185,400 mi

Comparison scope: Bloomington, IL area

Bloomington, IL

No Photo

2011 GMC Terrain

Pontoon Beach, IL

UnscoredInsufficient · 0
$3,90096,897 mi

Comparison scope: Pontoon Beach, IL area

Pontoon Beach, IL

No Photo

2010 GMC Terrain

Bloomington, IL

UnscoredInsufficient · 0
$3,988118,496 mi

Comparison scope: Bloomington, IL area

Bloomington, IL

No Photo

2007 GMC Yukon

Mount Zion, IL

UnscoredInsufficient · 0
$3,990196,350 mi

Comparison scope: Mount Zion, IL area

Mount Zion, IL

No Photo

2010 GMC Acadia

Carbondale, IL

UnscoredInsufficient · 0
$3,995164,710 mi

Comparison scope: Carbondale, IL area

Carbondale, IL

No Photo

2010 GMC Acadia

Chicago, IL

UnscoredInsufficient · 0
$3,995174,666 mi

Comparison scope: Chicago, IL area

Chicago, IL

No Photo

2013 GMC Terrain

Frankfort, IL

UnscoredInsufficient · 0
$3,995191,251 mi

Comparison scope: Frankfort, IL area

Frankfort, IL

No Photo

2009 GMC Envoy

Zion, IL

UnscoredInsufficient · 0
$3,999135,679 mi

Comparison scope: Zion, IL area

Zion, IL

No Photo

2011 GMC Acadia

Zion, IL

UnscoredInsufficient · 0
$3,999158,391 mi

Comparison scope: Zion, IL area

Zion, IL

No Photo

2012 GMC Acadia

Waukegan, IL

Great DealModerate · 29
$3,999179,394 mi

Market: $6,314$7,495

Comparison: 29 similar vehicles in Waukegan, IL area

Competitively priced ~42% below the typical range in the Waukegan market compared to similar vehicles · 75 days on lot (based on current market benchmarks)

Waukegan, IL

No Photo

2011 GMC Acadia

McLean, IL

UnscoredInsufficient · 0
$3,999176,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2011 GMC Terrain

Zion, IL

UnscoredInsufficient · 0
$3,999147,303 mi

Comparison scope: Zion, IL area

Zion, IL

No Photo

2007 GMC Yukon

Park Forest, IL

UnscoredInsufficient · 0
$4,200151,000 mi

Comparison scope: Park Forest, IL area

Park Forest, IL

No Photo

2014 GMC Terrain

Roselle, IL

Great DealLimited · 17
$4,400187,025 mi

Market: $5,016$11,999

Comparison: 17 similar vehicles in Roselle, IL area

Competitively priced ~48% below the typical range in the Roselle market compared to similar vehicles · 7 days on lot (based on current market benchmarks)

Roselle, IL

No Photo

2014 GMC Terrain

Rockford, IL

UnscoredInsufficient · 0
$4,412183,796 mi

Comparison scope: Rockford, IL area

Rockford, IL

Also available at 11 other IL locations

No Photo

2009 GMC Sierra 1500

Chicago Heights, IL

UnscoredInsufficient · 0
$4,495189,450 mi

Comparison scope: Chicago Heights, IL area

Chicago Heights, IL

No Photo

2012 GMC Acadia

Villa Park, IL

UnscoredLimited · 5
$4,499186,318 mi

Comparison: 5 similar vehicles in Villa Park, IL area

Villa Park, IL

No Photo

2014 GMC Acadia

Park Forest, IL

UnscoredLimited · 5
$4,500172,000 mi

Comparison: 5 similar vehicles in Park Forest, IL area

Park Forest, IL

No Photo

2010 GMC Acadia

Armington, IL

UnscoredInsufficient · 0
$4,799156,296 mi

Comparison scope: Armington, IL area

Armington, IL

No Photo

2002 GMC Envoy

Loves Park, IL

UnscoredInsufficient · 0
$4,800139,427 mi

Comparison scope: Loves Park, IL area

Loves Park, IL

No Photo

2003 GMC Savana Cargo

Steeleville, IL

UnscoredInsufficient · 0
$4,850162,048 mi

Comparison scope: Steeleville, IL area

Steeleville, IL

No Photo

2006 GMC Envoy

Downers Grove, IL

UnscoredInsufficient · 0
$4,877125,548 mi

Comparison scope: Downers Grove, IL area

Downers Grove, IL

Other vehicle markets in Illinois