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

The Automotive Answer Engine

Every car has an answer. We hold the evidence.

Ask about a VIN, price, or market. OAV returns an independent, snapshot-dated answer and the market evidence behind it — a verdict where the evidence supports one, and the evidence itself where it doesn't.

Found a car anywhere? Paste the VIN — OAV resolves it against the supported comparable range, drawn from millions of dealer-advertised listings. Dealers can't pay to change a verdict.

OAV.io is an independent automotive market-evidence platform. It evaluates asking prices against comparable listings and publishes a Price-to-Market verdict when the evidence supports one. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict.

Market snapshot · October 21, 2026

6M+

Unique vehicles analyzed

as of October 20, 2026

56,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.3M new·2.7M used·Listings processed daily

Or explore the market

1,599 listings found

2008 Dodge Grand Caravan SE

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

2008 Dodge Grand Caravan SE

Lake Geneva, WI

UnscoredInsufficient · 0
$2,450239,267 mi

Lake Geneva, WI

2015 Dodge Grand Caravan SE Plus

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

2015 Dodge Grand Caravan SE Plus

Antioch, IL

UnscoredInsufficient · 0
$2,636141,417 mi

Antioch, IL

2009 Kia Sedona LX

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

2009 Kia Sedona LX

Whitewater, WI

UnscoredInsufficient · 0
$2,895239,209 mi

Whitewater, WI

2001 Chrysler Town & Country LX

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

2001 Chrysler Town & Country LX

Milwaukee, WI

UnscoredInsufficient · 0
$2,995113,412 mi

Milwaukee, WI

2013 Chrysler Town & Country Touring-L

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

2013 Chrysler Town & Country Touring-L

Waukegan, IL

UnscoredLimited · 10
$2,999227,734 mi

Comparison: 10 similar vehicles

Waukegan, IL

2010 Honda Odyssey EX

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

2010 Honda Odyssey EX

Waukegan, IL

UnscoredLimited · 7
$2,999235,564 mi

Comparison: 7 similar vehicles

Waukegan, IL

2009 Chrysler Town & Country Touring

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

2009 Chrysler Town & Country Touring

Zion, IL

UnscoredLimited · 10
$2,999187,353 mi

Comparison: 10 similar vehicles

Zion, IL

2007 Hyundai Entourage GLS

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

2007 Hyundai Entourage GLS

Zion, IL

UnscoredInsufficient · 0
$2,999139,425 mi

Zion, IL

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Zion, IL

UnscoredLimited · 6
$2,999248,571 mi

Comparison: 6 similar vehicles

Zion, IL

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Waukegan, IL

UnscoredLimited · 6
$2,999225,946 mi

Comparison: 6 similar vehicles

Waukegan, IL

2005 Toyota Sienna LE

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

2005 Toyota Sienna LE

Zion, IL

UnscoredInsufficient · 4
$2,999213,992 mi

Comparison: 4 similar vehicles

Zion, IL

2003 Chrysler Town & Country LXI

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

2003 Chrysler Town & Country LXI

Waukegan, IL

UnscoredInsufficient · 0
$2,999145,636 mi

Waukegan, IL

2012 Nissan Quest SL

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

2012 Nissan Quest SL

Iron Ridge, WI

UnscoredInsufficient · 0
$3,500195,217 mi

Iron Ridge, WI

2011 Dodge Grand Caravan Crew

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

2011 Dodge Grand Caravan Crew

Iron Ridge, WI

UnscoredLimited · 10
$3,500176,725 mi

Comparison: 10 similar vehicles

Iron Ridge, WI

2004 Toyota Sienna XLE

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

2004 Toyota Sienna XLE

Milwaukee, WI

UnscoredLimited · 8
$3,595187,771 mi

Comparison: 8 similar vehicles

Milwaukee, WI

2011 Chrysler Town & Country Touring-L

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

2011 Chrysler Town & Country Touring-L

Delavan, WI

UnscoredLimited · 7
$3,636203,418 mi

Comparison: 7 similar vehicles

Delavan, WI

2008 Mazda MAZDA5 Sport

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

2008 Mazda MAZDA5 Sport

Milwaukee, WI

UnscoredInsufficient · 0
$3,695157,382 mi

Milwaukee, WI

2010 Honda Odyssey EX

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

2010 Honda Odyssey EX

Pewaukee, WI

UnscoredLimited · 6
$3,990184,000 mi

Comparison: 6 similar vehicles

Pewaukee, WI

2010 Chrysler Town & Country Touring Plus

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

2010 Chrysler Town & Country Touring Plus

Slinger, WI

UnscoredInsufficient · 4
$3,995Mileage not verified

Comparison: 4 similar vehicles

Slinger, WI

2014 Chrysler Town & Country Touring

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

2014 Chrysler Town & Country Touring

Zion, IL

UnscoredLimited · 17
$3,999171,273 mi

Comparison: 17 similar vehicles

Zion, IL

2014 Chrysler Town & Country Touring

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

2014 Chrysler Town & Country Touring

Zion, IL

UnscoredLimited · 17
$3,999182,361 mi

Comparison: 17 similar vehicles

Zion, IL

2013 Chrysler Town & Country Touring-L

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

2013 Chrysler Town & Country Touring-L

Waukegan, IL

UnscoredLimited · 10
$3,999154,332 mi

Comparison: 10 similar vehicles

Waukegan, IL

2012 Dodge Grand Caravan SXT

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

2012 Dodge Grand Caravan SXT

Waukegan, IL

UnscoredInsufficient · 4
$3,999129,782 mi

Comparison: 4 similar vehicles

Waukegan, IL

2011 Kia Sedona EX

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

2011 Kia Sedona EX

Zion, IL

UnscoredInsufficient · 0
$3,999135,376 mi

Zion, IL

2010 Dodge Grand Caravan SXT

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

2010 Dodge Grand Caravan SXT

Zion, IL

UnscoredLimited · 16
$3,999138,165 mi

Comparison: 16 similar vehicles

Zion, IL

2005 Toyota Sienna XLE Limited

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

2005 Toyota Sienna XLE Limited

Waukegan, IL

UnscoredLimited · 5
$3,999129,520 mi

Comparison: 5 similar vehicles

Waukegan, IL

2011 Volkswagen Routan SEL

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

2011 Volkswagen Routan SEL

Racine, WI

UnscoredInsufficient · 0
$4,267137,772 mi

Racine, WI

2004 Toyota Sienna XLE

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

2004 Toyota Sienna XLE

Milwaukee, WI

UnscoredLimited · 8
$4,295211,520 mi

Comparison: 8 similar vehicles

Milwaukee, WI

1999 Honda Odyssey EX

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

1999 Honda Odyssey EX

Fox Lake, IL

UnscoredInsufficient · 0
$4,325287,174 mi

Fox Lake, IL

2015 Nissan Quest SV

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

2015 Nissan Quest SV

Kenosha, WI

UnscoredInsufficient · 0
$4,995173,952 mi

Kenosha, WI

2013 Toyota Sienna LE

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

2013 Toyota Sienna LE

Greenfield, WI

UnscoredInsufficient · 3
$4,995242,799 mi

Comparison: 3 similar vehicles

Greenfield, WI

2012 Chrysler Town & Country Touring

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

2012 Chrysler Town & Country Touring

Kenosha, WI

UnscoredModerate · 22
$4,995184,684 mi

Comparison: 22 similar vehicles

Kenosha, WI

2016 Chrysler Town & Country Touring

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

2016 Chrysler Town & Country Touring

Zion, IL

UnscoredModerate · 23
$4,999159,406 mi

Comparison: 23 similar vehicles

Zion, IL

2015 Dodge Grand Caravan SXT

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

2015 Dodge Grand Caravan SXT

Zion, IL

UnscoredLimited · 13
$4,999157,123 mi

Comparison: 13 similar vehicles

Zion, IL

2014 Dodge Grand Caravan American Value Package

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

2014 Dodge Grand Caravan American Value Package

Zion, IL

UnscoredLimited · 8
$4,999139,614 mi

Comparison: 8 similar vehicles

Zion, IL

2013 Dodge Grand Caravan American Value Package

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

2013 Dodge Grand Caravan American Value Package

Zion, IL

UnscoredInsufficient · 0
$4,999130,846 mi

Zion, IL

2012 Dodge Grand Caravan SXT

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

2012 Dodge Grand Caravan SXT

Zion, IL

UnscoredInsufficient · 4
$4,999138,321 mi

Comparison: 4 similar vehicles

Zion, IL

2008 Mercedes-Benz R-Class R350

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

2008 Mercedes-Benz R-Class R350

Zion, IL

UnscoredInsufficient · 3
$4,999177,173 mi

Comparison: 3 similar vehicles

Zion, IL

2008 Toyota Sienna LE

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

2008 Toyota Sienna LE

Waukegan, IL

UnscoredLimited · 5
$4,999148,997 mi

Comparison: 5 similar vehicles

Waukegan, IL

2007 Mercedes-Benz R-Class R500

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

2007 Mercedes-Benz R-Class R500

Zion, IL

UnscoredInsufficient · 0
$4,999167,326 mi

Zion, IL

2014 Chrysler Town & Country Touring-L

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

2014 Chrysler Town & Country Touring-L

Iron Ridge, WI

UnscoredModerate · 38
$5,000156,183 mi

Comparison: 38 similar vehicles

Iron Ridge, WI

2010 Dodge Grand Caravan SXT

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

2010 Dodge Grand Caravan SXT

Waukesha, WI

UnscoredLimited · 15
$5,000185,540 mi

Comparison: 15 similar vehicles

Waukesha, WI

2003 Toyota Sienna LE

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

2003 Toyota Sienna LE

Burlington, WI

UnscoredInsufficient · 0
$5,184150,739 mi

Burlington, WI

2012 Honda Odyssey EX-L

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

2012 Honda Odyssey EX-L

South Milwaukee, WI

UnscoredModerate · 48
$5,495194,000 mi

Comparison: 48 similar vehicles

South Milwaukee, WI

2011 Honda Odyssey LX

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

2011 Honda Odyssey LX

South Milwaukee, WI

UnscoredInsufficient · 3
$5,495187,000 mi

Comparison: 3 similar vehicles

South Milwaukee, WI

2017 Dodge Grand Caravan SXT

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

2017 Dodge Grand Caravan SXT

West Allis, WI

UnscoredLimited · 7
$5,499196,272 mi

Comparison: 7 similar vehicles

West Allis, WI

2013 Chrysler Town & Country Touring-L

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

2013 Chrysler Town & Country Touring-L

Oostburg, WI

UnscoredModerate · 28
$5,499168,695 mi

Comparison: 28 similar vehicles

Oostburg, WI

2014 Dodge Grand Caravan SE 30th Anniversary

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

2014 Dodge Grand Caravan SE 30th Anniversary

Greenfield, WI

UnscoredLimited · 5
$5,598108,912 mi

Comparison: 5 similar vehicles

Greenfield, WI

2008 Chevrolet Uplander LS

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

2008 Chevrolet Uplander LS

Lake Geneva, WI

UnscoredInsufficient · 0
$5,80086,330 mi

Lake Geneva, WI

2014 Dodge Grand Caravan SXT

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

2014 Dodge Grand Caravan SXT

Ingleside, IL

UnscoredLimited · 8
$5,995108,358 mi

Comparison: 8 similar vehicles

Ingleside, IL

You can page through the first 500 listings. Add a filter, such as a ZIP code, price or year, to see others.

Trust signal layer

Demand-Verified Deals™

The Demand-Verified badge is sell-through evidence — the matched cohort of similar vehicles is selling faster than its market baseline, and this listing is still within the cohort’s typical selling window. It is separate from OAV’s price verdict. A Demand-Verified Deal is a listing that carries the badge and is also rated Great Deal (priced below the comparable-range floor by at least OAV's minimum-gap margin). The Deal is the intersection of the two signals. Each Demand-Verified listing shows its cohort’s typical sell-time, its days-on-lot, and a comparable count. Listings without sufficient, fresh cohort coverage get no label, and the section hides itself when none on a page qualify, so the signal stays honest.

Current status: the Demand-Verified badge is withheld on every listing while OAV re-validates the sell-through claim behind it, so no Top Demand-Verified Deals section is showing anywhere on the site right now. The sell-through evidence itself still appears on listings where a cohort supports it, and Price-to-Market verdicts are unaffected. The badge returns only if the re-validation confirms the claim.

See the full Demand-Verified Deals methodology for the labeling rules and examples.

Example market pages

OAV answers these questions

What are the best priced vehicles?
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 vehicles are priced below market?
Vehicles 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?
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 vehicles are priced below comparable listings?
OAV's Price-to-Market analysis compares a listing's asking price against similar cars, using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. 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.

How OAV.io compares with CarGurus, Cars.com and TrueCar

  • Carfax provides vehicle history reports and lists used cars for sale, showing how each price compares to its CARFAX Value.
  • CarGurus gives listings Deal Ratings based on its Instant Market Value (IMV), its estimate of a fair market price for a specific vehicle in a specific market.
  • Cars.com shows deal badges that compare a listing's price to similar vehicles in the same market.
  • Edmunds publishes car reviews and provides deal ratings on new and used listings.
  • iSeeCars analyzes and scores every listing and compares each price with the market price of similar vehicles for sale.
  • J.D. Power, which acquired the NADA Used Car Guide and NADAguides.com, publishes vehicle pricing and values.
  • TrueCar shows what others in your area paid for similar vehicles and connects shoppers with its Certified Dealers.

OAV.io is not a marketplace and does not sell cars. It helps shoppers find new and used cars at dealerships and evaluates each listing VIN by VIN against comparable listings, showing the comparable count, market range and as-of date for each rated listing. Its rating thresholds are published, thin evidence means Unscored, and dealers cannot pay to change an OAV.io rating, its eligibility or a listing's placement on OAV.io. Ratings are not guarantees of price or value, nor statements about a dealer in general.

How OAV.io compares

CarGurus, Instant Market Value, Deal Ratings, Cars.com, iSeeCars, TrueCar, TrueCar Price Graph, Edmunds, J.D. Power, NADA Used Car Guide, NADAguides, Carfax and CARFAX Value are trademarks of their respective owners. OAV.io is not affiliated with, sponsored by or endorsed by any of them.

How OAV works

How does OAV rate vehicle deals?
OAV compares a listing's asking price against similar vehicles currently for sale and publishes a Price-to-Market verdict only when the evidence supports one. OAV rates scored listings as Great Deal (priced below the comparable-range floor by at least OAV's minimum-gap margin), Fair Price (priced within the comparable range, or below the floor by less than that margin), or Overpriced (priced above the comparable range). Listings OAV cannot score on the available evidence are shown as Unscored rather than receiving an unsupported verdict. Ratings are recomputed as OAV processes new inventory data through its daily pipeline; each page shows the market snapshot used for its analysis.
How fresh is OAV's vehicle data?
OAV processes inventory, pricing, and days-on-lot data daily from the dealer source. Every market page and VIN page carries a “Market snapshot” timestamp showing the snapshot date the page was built from, so the exact data vintage is always visible.
Does OAV include days on lot?
Yes. OAV records days-on-lot from the dealer feed when the feed supplies it. Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
Are OAV dealers verified?
Dealer profiles include public market summaries from live inventory data — make mix, deal mix, average days on lot, market position. Claimed OAV dealers route inbound buyer inquiries and control verified contact information. Paid RetailVision™ subscribers unlock deeper analytics: per-listing comparable counts, market context drill-downs, inventory health, pricing recommendations, competitive benchmarking, alerts, and exports.
What technology powers OAV's deal ratings?
Certain vehicle market-standardization methods are covered by U.S. Patent No. 12,236,477; the Price-to-Market verdict method is the subject of a pending U.S. patent application. The standardization technology normalizes naming conventions and deduplicates cross-listed inventory across the dealership network, so every comparable-market calculation is drawn from a clean, unified data set.

Related questions

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