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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 22, 2026

6M+

Unique vehicles analyzed

as of October 21, 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

822 listings found

2002 Honda Odyssey EX

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

2002 Honda Odyssey EX

Sacramento, CA

UnscoredInsufficient · 3
$2,800139,204 mi

Comparison: 3 similar vehicles

Sacramento, CA

2002 Mazda MPV LX

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

2002 Mazda MPV LX

Roseville, CA

UnscoredInsufficient · 0
$2,995196,389 mi

Roseville, CA

2007 Toyota Sienna LE

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

2007 Toyota Sienna LE

Sacramento, CA

UnscoredLimited · 6
$3,395224,226 mi

Comparison: 6 similar vehicles

Sacramento, CA

2004 Toyota Sienna LE

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

2004 Toyota Sienna LE

Roseville, CA

UnscoredLimited · 6
$3,450222,910 mi

Comparison: 6 similar vehicles

Roseville, CA

2009 Mazda MAZDA5 Sport

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

2009 Mazda MAZDA5 Sport

Rio Linda, CA

UnscoredInsufficient · 0
$3,600190,000 mi

Rio Linda, CA

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

Rio Linda, CA

UnscoredLimited · 6
$3,800214,214 mi

Comparison: 6 similar vehicles

Rio Linda, CA

2005 Toyota Sienna LE

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

2005 Toyota Sienna LE

Sacramento, CA

UnscoredLimited · 6
$3,950206,000 mi

Comparison: 6 similar vehicles

Sacramento, CA

2004 Toyota Sienna LE

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

2004 Toyota Sienna LE

Roseville, CA

UnscoredLimited · 6
$3,995212,490 mi

Comparison: 6 similar vehicles

Roseville, CA

2004 Toyota Sienna LE

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

2004 Toyota Sienna LE

Grass Valley, CA

UnscoredLimited · 6
$4,165267,654 mi

Comparison: 6 similar vehicles

Grass Valley, CA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Sacramento, CA

Fair PriceLimited · 18
$4,500Mileage not verified

Market: $3,500 – $8,995

Comparison: 18 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 31 days listed (based on current market benchmarks)

Sacramento, CA

2013 Honda Odyssey EX

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

2013 Honda Odyssey EX

Rio Linda, CA

UnscoredInsufficient · 0
$4,800200,000 mi

Rio Linda, CA

2004 Honda Odyssey EX

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

2004 Honda Odyssey EX

Sacramento, CA

UnscoredInsufficient · 0
$4,860105,882 mi

Sacramento, CA

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

Sacramento, CA

UnscoredLimited · 6
$4,950170,850 mi

Comparison: 6 similar vehicles

Sacramento, CA

2011 Toyota Sienna LE

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

2011 Toyota Sienna LE

Sacramento, CA

UnscoredLimited · 8
$4,990202,208 mi

Comparison: 8 similar vehicles

Sacramento, CA

2010 Toyota Sienna Limited

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

2010 Toyota Sienna Limited

Roseville, CA

UnscoredInsufficient · 0
$4,995217,873 mi

Roseville, CA

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

Roseville, CA

UnscoredInsufficient · 0
$4,995191,497 mi

Roseville, CA

2005 Honda Odyssey EX

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

2005 Honda Odyssey EX

Sacramento, CA

UnscoredInsufficient · 0
$4,995169,564 mi

Sacramento, CA

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

Sacramento, CA

UnscoredLimited · 5
$4,999137,000 mi

Comparison: 5 similar vehicles

Sacramento, CA

2009 Honda Odyssey EX-L

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

2009 Honda Odyssey EX-L

Grass Valley, CA

Salvage title
$4,999159,483 mi

Grass Valley, CA

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

Sacramento, CA

Salvage title
$5,495194,741 mi

Sacramento, CA

2004 Toyota Sienna CE

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

2004 Toyota Sienna CE

Sacramento, CA

UnscoredInsufficient · 0
$5,495174,000 mi

Sacramento, CA

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Rancho Cordova, CA

UnscoredInsufficient · 3
$5,500197,200 mi

Comparison: 3 similar vehicles

Rancho Cordova, CA

2006 Honda Odyssey EX

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

2006 Honda Odyssey EX

Sacramento, CA

UnscoredInsufficient · 3
$5,750150,150 mi

Comparison: 3 similar vehicles

Sacramento, CA

2003 Toyota Sienna LE

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

2003 Toyota Sienna LE

Folsom, CA

UnscoredInsufficient · 0
$5,893288,946 mi

Folsom, CA

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

Rancho Cordova, CA

UnscoredInsufficient · 3
$5,899149,352 mi

Comparison: 3 similar vehicles

Rancho Cordova, CA

2012 Nissan Quest S

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

2012 Nissan Quest S

Rio Linda, CA

UnscoredInsufficient · 0
$5,900170,000 mi

Rio Linda, CA

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

Sacramento, CA

UnscoredInsufficient · 3
$5,950156,000 mi

Comparison: 3 similar vehicles

Sacramento, CA

2012 Dodge Grand Caravan SE

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

2012 Dodge Grand Caravan SE

Sacramento, CA

UnscoredInsufficient · 0
$5,950138,000 mi

Sacramento, CA

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

Sacramento, CA

UnscoredLimited · 8
$5,990194,988 mi

Comparison: 8 similar vehicles

Sacramento, CA

2019 Dodge Grand Caravan GT

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

2019 Dodge Grand Caravan GT

Sacramento, CA

UnscoredLimited · 9
$5,995121,989 mi

Comparison: 9 similar vehicles

Sacramento, CA

2006 Honda Odyssey EX

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

2006 Honda Odyssey EX

Sacramento, CA

UnscoredInsufficient · 3
$5,995166,150 mi

Comparison: 3 similar vehicles

Sacramento, CA

2004 Toyota Sienna XLE

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

2004 Toyota Sienna XLE

Sacramento, CA

UnscoredInsufficient · 4
$5,995176,446 mi

Comparison: 4 similar vehicles

Sacramento, CA

2004 Toyota Sienna LE

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

2004 Toyota Sienna LE

Sacramento, CA

UnscoredLimited · 6
$5,995146,464 mi

Comparison: 6 similar vehicles

Sacramento, CA

2000 Honda Odyssey EX

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

2000 Honda Odyssey EX

Roseville, CA

UnscoredInsufficient · 0
$5,995128,520 mi

Roseville, CA

2007 Kia Sedona LX

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

2007 Kia Sedona LX

Rocklin, CA

UnscoredInsufficient · 0
$6,16190,723 mi

Rocklin, CA

2009 Mercedes-Benz R-Class R350

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

2009 Mercedes-Benz R-Class R350

Sacramento, CA

UnscoredInsufficient · 0
$6,222112,722 mi

Sacramento, CA

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

Sacramento, CA

UnscoredLimited · 7
$6,295123,165 mi

Comparison: 7 similar vehicles

Sacramento, CA

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

Sacramento, CA

UnscoredInsufficient · 3
$6,450172,877 mi

Comparison: 3 similar vehicles

Sacramento, CA

2006 Honda Odyssey EX

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

2006 Honda Odyssey EX

Yuba City, CA

UnscoredInsufficient · 3
$6,450136,848 mi

Comparison: 3 similar vehicles

Yuba City, CA

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Sacramento, CA

UnscoredInsufficient · 3
$6,495158,639 mi

Comparison: 3 similar vehicles

Sacramento, CA

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

Sacramento, CA

UnscoredInsufficient · 3
$6,498124,849 mi

Comparison: 3 similar vehicles

Sacramento, CA

No Photo

2002 Toyota Sienna LE

Roseville, CA

UnscoredInsufficient · 0
$6,616126,997 mi

Roseville, CA

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

Rancho Cordova, CA

UnscoredInsufficient · 3
$6,695Mileage not verified

Comparison: 3 similar vehicles

Rancho Cordova, CA

2018 Dodge Grand Caravan GT

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

2018 Dodge Grand Caravan GT

Sacramento, CA

UnscoredLimited · 10
$6,820127,230 mi

Comparison: 10 similar vehicles

Sacramento, CA

2009 Mazda MAZDA5 Grand Touring

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

2009 Mazda MAZDA5 Grand Touring

West Sacramento, CA

UnscoredInsufficient · 0
$6,90076,500 mi

West Sacramento, CA

2016 Kia Sedona LX

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

2016 Kia Sedona LX

Sacramento, CA

UnscoredInsufficient · 3
$6,995151,965 mi

Comparison: 3 similar vehicles

Sacramento, CA

2010 Honda Odyssey EX-L

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

2010 Honda Odyssey EX-L

Rancho Cordova, CA

UnscoredLimited · 6
$6,995146,691 mi

Comparison: 6 similar vehicles

Rancho Cordova, CA

2008 Toyota Sienna LE

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

2008 Toyota Sienna LE

Sacramento, CA

UnscoredInsufficient · 3
$6,995186,260 mi

Comparison: 3 similar vehicles

Sacramento, CA

2006 Chrysler Pacifica Touring

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

2006 Chrysler Pacifica Touring

Roseville, CA

UnscoredInsufficient · 0
$6,99587,151 mi

Roseville, CA

2005 Dodge Grand Caravan SE

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

2005 Dodge Grand Caravan SE

Sacramento, CA

UnscoredInsufficient · 3
$6,99569,174 mi

Comparison: 3 similar vehicles

Sacramento, CA

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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