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

Best Priced Sedans in Illinois

The best priced sedans 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 23, 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 34,500 sedans across the Illinois market.

Total sedans

34,424

Average Price

$31,507

Price Range

$3,000–$394,445

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.

Sedans market summary — Illinois

MarketIllinois
Body typeSedans
Listings analyzed34,424
Average price$31,507
Price range$3,000 – $394,445
Ranking signalsPrice-to-market, year, mileage, days-on-lot, comparable count
Refresh cadenceDaily

Best Overall Sedans in Illinois

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

Cheapest Great Deals on Sedans 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 Sedans in Illinois?
OAV ranks Sedans 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 Sedans in Illinois are priced below market?
Sedans flagged as undervalued are priced below the typical range for comparable Sedans 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 Sedans are undervalued compared with local comparables in Illinois?
OAV's Price-to-Market analysis evaluates every eligible listing against similar Sedans 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 Sedans in Illinois

Showing the 24 best-priced sedans from 34,424 active listings.

No Photo

2009 INFINITI G Sedan

Frankfort, IL

UnscoredInsufficient · 0
$3,000166,789 mi

Comparison scope: Frankfort, IL area

Frankfort, IL

No Photo

1999 Buick Park Avenue

Decatur, IL

UnscoredInsufficient · 0
$3,000126,668 mi

Comparison scope: Decatur, IL area

Decatur, IL

No Photo

2003 Ford Taurus

Belleville, IL

UnscoredInsufficient · 0
$3,000184,992 mi

Comparison scope: Belleville, IL area

Belleville, IL

No Photo

2003 Honda Civic

Plainfield, IL

UnscoredInsufficient · 0
$3,000150,251 mi

Comparison scope: Plainfield, IL area

Plainfield, IL

No Photo

2005 Mercury Montego

Loves Park, IL

UnscoredInsufficient · 0
$3,000111,719 mi

Comparison scope: Loves Park, IL area

Loves Park, IL

No Photo

2008 Chrysler Sebring

Loves Park, IL

UnscoredInsufficient · 0
$3,000138,200 mi

Comparison scope: Loves Park, IL area

Loves Park, IL

No Photo

2010 Ford Focus

Glenview, IL

UnscoredInsufficient · 3
$3,000143,114 mi

Comparison: 3 similar vehicles in Glenview, IL area

Glenview, IL

Also available at 1 other IL location

No Photo

2012 Mitsubishi Galant

Calumet City, IL

UnscoredInsufficient · 0
$3,000169,028 mi

Comparison scope: Calumet City, IL area

Calumet City, IL

No Photo

2015 Chevrolet Cruze

Chicago, IL

UnscoredModerate · 27
$3,084150,000 mi

Comparison: 27 similar vehicles in Chicago, IL area

Chicago, IL

No Photo

2003 Volkswagen Passat

McLean, IL

UnscoredInsufficient · 0
$3,100161,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2001 Toyota Prius

McLean, IL

UnscoredInsufficient · 0
$3,200161,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2003 Buick Century

Harvey, IL

UnscoredInsufficient · 0
$3,20079,300 mi

Comparison scope: Harvey, IL area

Harvey, IL

No Photo

2003 Hyundai Accent

McLean, IL

UnscoredInsufficient · 0
$3,200127,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2004 Hyundai Elantra

Markham, IL

UnscoredInsufficient · 0
$3,20068,165 mi

Comparison scope: Markham, IL area

Markham, IL

No Photo

2004 Volkswagen Passat

McLean, IL

UnscoredInsufficient · 0
$3,200122,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2005 Chevrolet Impala

McLean, IL

UnscoredInsufficient · 0
$3,200151,000 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2005 Hyundai Sonata

McLean, IL

UnscoredInsufficient · 0
$3,200161,210 mi

Comparison scope: McLean, IL area

McLean, IL

No Photo

2005 Pontiac G6

Machesney Park, IL

UnscoredInsufficient · 0
$3,200158,000 mi

Comparison scope: Machesney Park, IL area

Machesney Park, IL

No Photo

2007 Buick Lucerne

Loves Park, IL

UnscoredInsufficient · 0
$3,200165,698 mi

Comparison scope: Loves Park, IL area

Loves Park, IL

No Photo

2011 Ford Fiesta

Pontiac, IL

UnscoredInsufficient · 0
$3,200156,225 mi

Comparison scope: Pontiac, IL area

Pontiac, IL

No Photo

2012 Nissan Altima

Batavia, IL

Fair PriceModerate · 44
$3,200175,165 mi

Market: $1,900$8,377

Comparison: 44 similar vehicles in Batavia, IL area

Fairly priced — in line with the typical market range in the Batavia market for similar vehicles · 10 days listed (based on current market benchmarks)

Batavia, IL

No Photo

2013 Hyundai Elantra

Morton Grove, IL

Great DealModerate · 21
$3,200100,000 mi

Market: $3,899$10,995

Comparison: 21 similar vehicles in Morton Grove, IL area

Competitively priced ~57% below the typical range in the Morton Grove market compared to similar vehicles · 166 days listed (based on current market benchmarks)

Morton Grove, IL

No Photo

2014 Chevrolet Cruze

Morton Grove, IL

UnscoredModerate · 43
$3,20094,753 mi

Comparison: 43 similar vehicles in Morton Grove, IL area

Morton Grove, IL

No Photo

2012 Chrysler 200

Armington, IL

UnscoredLimited · 5
$3,249188,610 mi

Comparison: 5 similar vehicles in Armington, IL area

Armington, IL

Other vehicle markets in Illinois