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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 17, 2026

5.9M+

Unique vehicles analyzed

as of October 16, 2026

57,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.2M new·2.8M used·Listings processed daily

Or explore the market

2,063 listings found

2002 Dodge Grand Caravan Sport

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

2002 Dodge Grand Caravan Sport

Cresco, IA

UnscoredInsufficient · 0
$1,200171,126 mi

Cresco, IA

2013 Dodge Grand Caravan SE

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

2013 Dodge Grand Caravan SE

Waterloo, IA

UnscoredLimited · 10
$1,909186,434 mi

Comparison: 10 similar vehicles

Waterloo, IA

No Photo

2005 Toyota Sienna XLE

Manchester, IA

UnscoredInsufficient · 0
$2,350315,820 mi

Manchester, IA

2016 Dodge Grand Caravan SE

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

2016 Dodge Grand Caravan SE

Davenport, IA

UnscoredModerate · 27
$2,495304,281 mi

Comparison: 27 similar vehicles

Davenport, IA

2007 Toyota Sienna LE

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

2007 Toyota Sienna LE

Des Moines, IA

UnscoredInsufficient · 0
$2,500223,178 mi

Des Moines, IA

2015 Dodge Grand Caravan SE

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

2015 Dodge Grand Caravan SE

Blairstown, IA

UnscoredLimited · 11
$2,674281,856 mi

Comparison: 11 similar vehicles

Blairstown, IA

No Photo

2010 Chrysler Town & Country Touring

Manchester, IA

UnscoredModerate · 31
$2,850209,259 mi

Comparison: 31 similar vehicles

Manchester, IA

2010 Chrysler Town & Country Limited

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

2010 Chrysler Town & Country Limited

Cedar Falls, IA

UnscoredInsufficient · 0
$2,885166,668 mi

Cedar Falls, IA

2006 Kia Sedona LX

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

2006 Kia Sedona LX

Waterloo, IA

UnscoredInsufficient · 0
$2,900228,062 mi

Waterloo, IA

2009 Kia Sedona LX

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

2009 Kia Sedona LX

Lawton, IA

UnscoredInsufficient · 0
$2,950232,613 mi

Lawton, IA

2006 Toyota Sienna XLE Limited

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

2006 Toyota Sienna XLE Limited

Des Moines, IA

UnscoredInsufficient · 0
$2,950250,000 mi

Des Moines, IA

1998 Toyota Sienna LE

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

1998 Toyota Sienna LE

Sioux City, IA

UnscoredInsufficient · 0
$2,950225,465 mi

Sioux City, IA

2009 Dodge Grand Caravan SE

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

2009 Dodge Grand Caravan SE

Elgin, IA

UnscoredInsufficient · 3
$2,975110,200 mi

Comparison: 3 similar vehicles

Elgin, IA

2008 Honda Odyssey EX-L

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

2008 Honda Odyssey EX-L

Waterloo, IA

UnscoredInsufficient · 3
$2,995188,616 mi

Comparison: 3 similar vehicles

Waterloo, IA

2006 Chrysler Town & Country Limited

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

2006 Chrysler Town & Country Limited

Waterloo, IA

UnscoredInsufficient · 0
$3,154137,302 mi

Waterloo, IA

2007 Honda Odyssey Touring

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

2007 Honda Odyssey Touring

West Burlington, IA

UnscoredInsufficient · 0
$3,300228,514 mi

West Burlington, IA

2010 Chrysler Town & Country Touring

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

2010 Chrysler Town & Country Touring

Maquoketa, IA

UnscoredModerate · 24
$3,479205,581 mi

Comparison: 24 similar vehicles

Maquoketa, IA

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

Indianola, IA

UnscoredInsufficient · 0
$3,495183,951 mi

Indianola, IA

2007 Chevrolet Uplander LT

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

2007 Chevrolet Uplander LT

Des Moines, IA

UnscoredInsufficient · 0
$3,500175,736 mi

Des Moines, IA

2008 Chrysler Town & Country Touring

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

2008 Chrysler Town & Country Touring

Hudson, IA

UnscoredLimited · 6
$3,680118,125 mi

Comparison: 6 similar vehicles

Hudson, IA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Sioux City, IA

UnscoredInsufficient · 4
$3,700203,162 mi

Comparison: 4 similar vehicles

Sioux City, IA

2014 Dodge Grand Caravan SE

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

2014 Dodge Grand Caravan SE

Sioux City, IA

UnscoredInsufficient · 4
$3,800177,004 mi

Comparison: 4 similar vehicles

Sioux City, IA

2012 Chrysler Town & Country Touring-L

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

2012 Chrysler Town & Country Touring-L

Waterloo, IA

UnscoredLimited · 8
$3,800190,729 mi

Comparison: 8 similar vehicles

Waterloo, IA

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

Le Mars, IA

UnscoredLimited · 9
$3,900172,010 mi

Comparison: 9 similar vehicles

Le Mars, IA

2011 Chrysler Town & Country Touring

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

2011 Chrysler Town & Country Touring

Storm Lake, IA

UnscoredLimited · 7
$3,900176,955 mi

Comparison: 7 similar vehicles

Storm Lake, IA

2010 Chrysler Town & Country Limited

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

2010 Chrysler Town & Country Limited

Sioux City, IA

UnscoredInsufficient · 0
$3,950183,672 mi

Sioux City, IA

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Sioux City, IA

UnscoredInsufficient · 0
$3,950223,123 mi

Sioux City, IA

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

Oskaloosa, IA

UnscoredLimited · 11
$3,995248,743 mi

Comparison: 11 similar vehicles

Oskaloosa, IA

2008 Chrysler Town & Country Touring

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

2008 Chrysler Town & Country Touring

Storm Lake, IA

UnscoredLimited · 5
$4,000237,187 mi

Comparison: 5 similar vehicles

Storm Lake, IA

2018 Dodge Grand Caravan SE

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

2018 Dodge Grand Caravan SE

Sioux City, IA

UnscoredLimited · 10
$4,400228,429 mi

Comparison: 10 similar vehicles

Sioux City, IA

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

Iowa City, IA

UnscoredModerate · 33
$4,420209,618 mi

Comparison: 33 similar vehicles

Iowa City, IA

2011 Honda Odyssey EX-L

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

2011 Honda Odyssey EX-L

Carlisle, IA

UnscoredLimited · 8
$4,499207,117 mi

Comparison: 8 similar vehicles

Carlisle, IA

2015 Chrysler Town & Country S

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

2015 Chrysler Town & Country S

Des Moines, IA

UnscoredInsufficient · 0
$4,500219,481 mi

Des Moines, IA

2010 Chrysler Town & Country Touring

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

2010 Chrysler Town & Country Touring

Storm Lake, IA

UnscoredModerate · 34
$4,500202,151 mi

Comparison: 34 similar vehicles

Storm Lake, IA

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

Algona, IA

UnscoredLimited · 7
$4,680151,435 mi

Comparison: 7 similar vehicles

Algona, IA

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

Sioux City, IA

UnscoredInsufficient · 0
$4,695134,000 mi

Sioux City, IA

2011 Nissan Quest SL

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

2011 Nissan Quest SL

Manchester, IA

UnscoredInsufficient · 0
$4,850184,741 mi

Manchester, IA

No Photo

2010 Honda Odyssey EX

Manchester, IA

UnscoredInsufficient · 3
$4,850184,582 mi

Comparison: 3 similar vehicles

Manchester, IA

2012 Volkswagen Routan SE

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

2012 Volkswagen Routan SE

Sioux City, IA

UnscoredInsufficient · 0
$4,899148,771 mi

Sioux City, IA

2015 Dodge Grand Caravan SE

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

2015 Dodge Grand Caravan SE

De Soto, IA

UnscoredLimited · 9
$4,900146,111 mi

Comparison: 9 similar vehicles

De Soto, IA

2016 Dodge Grand Caravan American Value Package

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

2016 Dodge Grand Caravan American Value Package

Onawa, IA

UnscoredInsufficient · 0
$4,950233,854 mi

Onawa, IA

2011 Honda Odyssey EX-L

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

2011 Honda Odyssey EX-L

Sioux City, IA

UnscoredLimited · 5
$4,950218,031 mi

Comparison: 5 similar vehicles

Sioux City, IA

2010 Chrysler Town & Country Touring

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

2010 Chrysler Town & Country Touring

Mount Ayr, IA

UnscoredModerate · 34
$4,950218,127 mi

Comparison: 34 similar vehicles

Mount Ayr, IA

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

Des Moines, IA

UnscoredModerate · 43
$4,995168,927 mi

Comparison: 43 similar vehicles

Des Moines, IA

2011 Honda Odyssey EX-L

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

2011 Honda Odyssey EX-L

Sioux City, IA

UnscoredLimited · 5
$4,995203,122 mi

Comparison: 5 similar vehicles

Sioux City, IA

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

Marion, IA

UnscoredLimited · 12
$4,995205,251 mi

Comparison: 12 similar vehicles

Marion, IA

2004 Ford Freestar Limited

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

2004 Ford Freestar Limited

Des Moines, IA

UnscoredInsufficient · 0
$4,995164,550 mi

Des Moines, IA

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

Carlisle, IA

UnscoredLimited · 16
$4,999165,000 mi

Comparison: 16 similar vehicles

Carlisle, IA

2005 Chrysler Town & Country Base

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

2005 Chrysler Town & Country Base

Keokuk, IA

UnscoredInsufficient · 0
$4,999129,460 mi

Keokuk, IA

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

Charles City, IA

Salvage title
$5,195201,265 mi

Charles City, IA

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 manage their profile, 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, exports, and enhanced merchandising.
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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