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

Minivans in O'Fallon, IL

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 comparable listings.

OAV helps determine if a vehicle is a good deal by comparing its price to similar listings within its supported comparable range. Sell-through is separate Demand-Verified evidence, not part of the price verdict.

Explore minivans in O'Fallon, IL with OAV's Price-to-Market analysis against comparable listings. A verdict appears only where the evidence supports one.

Market snapshot · October 5, 2026 · refresh delayed · 2 days ago

How OAV Identifies Deals

OAV builds a comparable range for each vehicle from regularly refreshed dealer-advertised listings — same make, model and year range, trim where the data supports it. Where the evidence supports a verdict, a vehicle is rated by how its asking price compares to that range; days-on-lot and sell-through are separate demand signals, never inputs to the Price-to-Market verdict. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored.

  • Millions of retail comparables across U.S. markets.
  • Vehicles compared on year, make, model, and trim (when available).
  • Real price-to-market ranges from regularly refreshed market data.
  • Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
  • Listings priced below the comparable-range floor by at least OAV's minimum-gap margin surface as Great Deal — a great deal compared to similar vehicles currently for sale.
  • Listings priced within the comparable range, or below the floor by less than that margin surface as Fair Price — fairly priced, in line with what comparable vehicles are typically listed for.
  • Listings priced above the comparable range surface as Overpriced — above market, higher than what comparable vehicles are typically listed for.
  • Dealer business information is public on every profile. OAV-claimed dealers manage their profile directly and route inquiries through OAV.

This helps identify which listings are a great deal relative to comparable vehicles — OAV's Great Deal verdict — and shows the evidence behind every rating.

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

Learn how OAV identifies Demand-Verified Deals™

According to RetailVision™ data, OAV is currently analyzing approximately 46 minivans across the O'Fallon, IL market.

Minivan Listings

46

Average Price

$41,689

Price Range (excl. >$200k outliers)

$11,213–$65,092

Average price and price range exclude listings priced above $200,000 to keep placeholder / upfit outliers out of the reported market range; the minivan listings count includes them.

About the minivan market

Four players dominate the segment: Chrysler Pacifica, Toyota Sienna, Honda Odyssey, and Kia Carnival. Family-hauler demand keeps days-on-lot compressed on well-maintained examples with sliding doors, second-row captain's chairs, and clean interiors. Pacifica Hybrid and Sienna AWD/Hybrid are particularly scarce — they sell faster than gas-only trims at the same price point. Mileage sensitivity is higher than in the truck or SUV segments because minivans typically rack up family-transport miles fast, so a low-mile example carries an outsized premium.

Minivans market summary — O'Fallon, IL

MarketO'Fallon, IL
Body typeMinivans
Listings analyzed46
Average price$41,689
Price range$11,213 – $65,092
Price-to-Market basisAsking price vs comparable listings (same make/model, year window, trim where available). Days-on-lot and sell-through are separate demand signals, not verdict inputs.
Refresh cadenceRefresh delayed · 2 days ago

Minivan Market in O'Fallon, IL

Dealers in O'Fallon have 46 minivans listed. The average asking price is $41,689, ranging from $11,213 to $65,092.

OAV answers these questions

What are the best priced minivans in O'Fallon, IL?
OAV orders minivans in O'Fallon, IL by price verdict — Great Deal first — and, within each group, by comparable-evidence depth and then price; days-on-lot is shown as a separate demand signal, not a ranking input. Great Deal means priced below the comparable-range floor by at least OAV's minimum-gap margin; Fair Price means priced within the comparable range, or below the floor by less than that margin.
Which minivans in O'Fallon, IL are priced below market?
Minivans in O'Fallon, IL rated Great Deal are priced below the comparable-range floor by at least OAV's minimum-gap margin. Each one links to its vehicle page.
Which listings are Demand-Verified in O'Fallon, IL?
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 minivans are priced below comparable listings in O'Fallon, IL?
OAV's Price-to-Market analysis compares a listing's asking price against similar minivans in O'Fallon, IL, using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it, and mileage is not used to select comparables or adjust comparable prices, but acts as a reliability check on used vehicles — OAV withholds a verdict when mileage is very high or unreliable, or when a lower price is better explained by higher-than-typical mileage than by a genuine market discount. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.

Analysis coverage — O'Fallon, IL minivan market

OAV analyzed all 46 listings in this market. 27 (59%) carry a Price-to-Market verdict; 19 are Unscored — pricing withheld for thin comparables, extreme mileage, or other data limits. Scored listings are shown first; withheld listings shown below link to vehicle pages that give the reason, so the pool stays auditable.

0Great Deal22Fair Price5Overpriced

Coverage reflects the full market as of the latest daily snapshot. Demand and days-on-lot are reported separately and are never inputs to the verdict.

All Minivans in O'Fallon

8 confidently-priced minivans shown first — listings we can't price appear below.

2020 Chrysler Pacifica Touring L Plus

Image from the dealer's site. OAV does not own, control, or store dealer images.

2020 Chrysler Pacifica Touring L Plus

O'Fallon, IL

Fair PriceRobust · 71
$24,41343,944 mi

Market: $14,797 – $27,373

Comparison: 71 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 13 days listed (based on current market benchmarks)

O'Fallon, IL

2020 Chrysler Pacifica Touring L Plus

Image from the dealer's site. OAV does not own, control, or store dealer images.

2020 Chrysler Pacifica Touring L Plus

O'fallon, IL

Fair PriceRobust · 64
$24,60423,148 mi

Market: $14,797 – $27,373

Comparison: 64 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 3 days listed (based on current market benchmarks)

O'fallon, IL

2027 Honda Odyssey Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 Honda Odyssey Touring

O'Fallon, IL

Fair PriceModerate · 38
$50,06612 mi

Market: $49,845 – $51,451

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 12 days listed (based on current market benchmarks)

O'Fallon, IL

2027 Honda Odyssey Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 Honda Odyssey Touring

O'Fallon, IL

Fair PriceModerate · 38
$50,42112 mi

Market: $49,845 – $51,451

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 49 days listed (based on current market benchmarks)

O'Fallon, IL

2027 Honda Odyssey Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 Honda Odyssey Touring

O'Fallon, IL

Fair PriceModerate · 38
$50,521Mileage not verified

Market: $49,845 – $51,451

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 8 days listed (based on current market benchmarks)

O'Fallon, IL

2026 Toyota Sienna Platinum

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Toyota Sienna Platinum

O'Fallon, IL

Fair PriceModerate · 25
$61,613Mileage not verified

Market: $61,640 – $65,092

Comparison: 25 similar vehicles

Fairly priced — priced near the comparable range, but not far enough below it to qualify as a Great Deal · 32 days listed (based on current market benchmarks)

O'Fallon, IL

2026 Toyota Sienna Platinum

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Toyota Sienna Platinum

O'Fallon, IL

Fair PriceModerate · 25
$63,378Mileage not verified

Market: $61,613 – $65,092

Comparison: 25 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 32 days listed (based on current market benchmarks)

O'Fallon, IL

2023 Chrysler Pacifica Limited

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 Chrysler Pacifica Limited

O'fallon, IL

Fair PriceModerate · 20
$27,37970,588 mi

Market: $19,995 – $28,413

Comparison: 20 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 49 days listed (based on current market benchmarks)

O'fallon, IL

Listings without a supported price verdict in O'Fallon

These minivans are shown for completeness, but OAV is withholding a Price-to-Market verdict — thin comparables, extreme mileage, or other data limits. Each card shows why it's withheld.

2015 Nissan Quest Platinum

Image from the dealer's site. OAV does not own, control, or store dealer images.

2015 Nissan Quest Platinum

O'Fallon, IL

UnscoredInsufficient · 0
$10,673107,771 mi

O'Fallon, IL

2014 Honda Odyssey EX-L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2014 Honda Odyssey EX-L

O'Fallon, IL

UnscoredLimited · 5
$11,213157,279 mi

Comparison: 5 similar vehicles

O'Fallon, IL

2017 Chrysler Pacifica Touring-L Plus

Image from the dealer's site. OAV does not own, control, or store dealer images.

2017 Chrysler Pacifica Touring-L Plus

O'Fallon, IL

UnscoredLimited · 8
$12,940119,545 mi

Comparison: 8 similar vehicles

O'Fallon, IL

2020 Chrysler Pacifica Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2020 Chrysler Pacifica Touring

O'Fallon, IL

UnscoredInsufficient · 3
$13,413140,647 mi

Comparison: 3 similar vehicles

O'Fallon, IL

2019 Chrysler Pacifica Limited

Image from the dealer's site. OAV does not own, control, or store dealer images.

2019 Chrysler Pacifica Limited

O'Fallon, IL

UnscoredLimited · 8
$14,332160,369 mi

Comparison: 8 similar vehicles

O'Fallon, IL

2019 Kia Sedona EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2019 Kia Sedona EX

O'Fallon, IL

UnscoredLimited · 7
$15,41390,019 mi

Comparison: 7 similar vehicles

O'Fallon, IL

2016 Kia Sedona LX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2016 Kia Sedona LX

O'Fallon, IL

UnscoredInsufficient · 0
$16,99863,064 mi

O'Fallon, IL

2017 Honda Odyssey Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2017 Honda Odyssey Touring

O'Fallon, IL

UnscoredInsufficient · 0
$20,95498,839 mi

O'Fallon, IL

2021 Chrysler Pacifica Touring L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Chrysler Pacifica Touring L

O'Fallon, IL

UnscoredLimited · 5
$21,99853,810 mi

Comparison: 5 similar vehicles

O'Fallon, IL

2021 Honda Odyssey Touring

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Honda Odyssey Touring

O'Fallon, IL

UnscoredLimited · 17
$25,054165,080 mi

Comparison: 17 similar vehicles

O'Fallon, IL

2018 Toyota Sienna XLE Premium

Image from the dealer's site. OAV does not own, control, or store dealer images.

2018 Toyota Sienna XLE Premium

O'Fallon, IL

UnscoredInsufficient · 0
$27,99885,616 mi

O'Fallon, IL

2024 Honda Odyssey EX-L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 Honda Odyssey EX-L

O'Fallon, IL

UnscoredLimited · 7
$36,35443,944 mi

Comparison: 7 similar vehicles

O'Fallon, IL

2024 Honda Odyssey EX-L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 Honda Odyssey EX-L

O'Fallon, IL

UnscoredLimited · 7
$36,99826,344 mi

Comparison: 7 similar vehicles

O'Fallon, IL

2024 Honda Odyssey EX-L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2024 Honda Odyssey EX-L

O'Fallon, IL

UnscoredLimited · 7
$38,24329,034 mi

Comparison: 7 similar vehicles

O'Fallon, IL

2026 Honda Odyssey EX-L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Honda Odyssey EX-L

O'Fallon, IL

UnscoredLimited · 5
$42,8547,044 mi

Comparison: 5 similar vehicles

O'Fallon, IL

2025 Honda Odyssey Elite

Image from the dealer's site. OAV does not own, control, or store dealer images.

2025 Honda Odyssey Elite

O'Fallon, IL

UnscoredInsufficient · 4
$45,25437,748 mi

Comparison: 4 similar vehicles

O'Fallon, IL

2027 Honda Odyssey Sport L

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 Honda Odyssey Sport L

O'Fallon, IL

UnscoredLimited · 6
$47,78112 mi

Comparison: 6 similar vehicles

O'Fallon, IL

2026 Toyota Sienna XSE

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Toyota Sienna XSE

O'Fallon, IL

UnscoredLimited · 8
$53,077Mileage not verified

Comparison: 8 similar vehicles

O'Fallon, IL

2026 Honda Odyssey Elite

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Honda Odyssey Elite

O'Fallon, IL

UnscoredInsufficient · 4
$54,9112 mi

Comparison: 4 similar vehicles

O'Fallon, IL

What makes OAV different from traditional car-listing sites

Traditional vehicle-listing marketplaces are built for shoppers to browse inventory. OAV is the answer-engine layer above the marketplace: it evaluates vehicle asking prices with Price-to-Market against comparable listings and shows the market evidence behind each verdict. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict. OAV is built for the next car-shopping behavior: asking which vehicle to buy, not just browsing inventory.

How OAV works — common questions

How does OAV find cars priced below market?
OAV compares a listing's asking price against similar vehicles currently for sale — using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it, and mileage is not used to select comparables or adjust comparable prices, but acts as a reliability check on used vehicles — OAV withholds a verdict when mileage is very high or unreliable, or when a lower price is better explained by higher-than-typical mileage than by a genuine market discount — to compute a price-to-market range. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.
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 Great Deal verdict from Price-to-Market (priced below the comparable-range floor by at least OAV's minimum-gap margin). The price verdict establishes where the asking price sits relative to OAV's supported comparable range. The Demand-Verified signal measures whether the matched sold cohort is moving faster than its market baseline and whether this listing remains within that cohort's typical selling window — it does not show that buyers are paying this listing's asking price. While OAV re-validates the sell-through claim, the badge is withheld on every listing and no Demand-Verified Deals are being labeled.
Does OAV use local market comparables?
Yes — local-first. OAV starts with comparable retail listings in the same metro and broader region, and widens the comparison set only when local inventory is too thin to support a reliable range. A truck in Dallas is compared against Dallas-area trucks where the local market supports it; an EV in Los Angeles against LA-area EVs. This local-first approach makes the price-to-market math meaningful.
Why does days-on-lot matter when shopping for used cars?
How long a vehicle sits is a demand signal about its cohort, not proof that buyers are paying this listing's price. 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 — OAV has body-type market views for trucks, SUVs, sedans and EVs in major U.S. metros and ZIP codes. Each listing links to its vehicle page. Start at the homepage or any city or ZIP page.

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