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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 20, 2026

6M+

Unique vehicles analyzed

as of October 19, 2026

56,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

3.3M new·2.8M used·Listings processed daily

Or explore the market

3,612 listings found

2003 Honda Odyssey EX

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

2003 Honda Odyssey EX

Chantilly, VA

UnscoredInsufficient · 3
$2,400184,213 mi

Comparison: 3 similar vehicles

Chantilly, VA

2017 Dodge Grand Caravan SE

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

2017 Dodge Grand Caravan SE

Sterling, VA

UnscoredRobust · 53
$2,500191,260 mi

Comparison: 53 similar vehicles

Sterling, VA

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

Clinton, MD

UnscoredLimited · 5
$2,900256,359 mi

Comparison: 5 similar vehicles

Clinton, MD

2011 Honda Odyssey EX

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

2011 Honda Odyssey EX

Woodbridge, VA

UnscoredLimited · 13
$2,950213,378 mi

Comparison: 13 similar vehicles

Woodbridge, VA

2010 Dodge Grand Caravan SE

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

2010 Dodge Grand Caravan SE

Woodbridge, VA

UnscoredLimited · 8
$2,950173,875 mi

Comparison: 8 similar vehicles

Woodbridge, VA

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

Woodbridge, VA

UnscoredModerate · 20
$2,950213,637 mi

Comparison: 20 similar vehicles

Woodbridge, VA

2004 Honda Odyssey EX

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

2004 Honda Odyssey EX

Woodbridge, VA

UnscoredInsufficient · 3
$2,950177,287 mi

Comparison: 3 similar vehicles

Woodbridge, VA

2002 Toyota Sienna LE

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

2002 Toyota Sienna LE

Woodbridge, VA

UnscoredInsufficient · 0
$2,950285,819 mi

Woodbridge, VA

1999 Toyota Sienna CE

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

1999 Toyota Sienna CE

Fredericksburg, VA

UnscoredInsufficient · 0
$2,995137,277 mi

Fredericksburg, VA

2016 Dodge Grand Caravan SXT

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

2016 Dodge Grand Caravan SXT

Alexandria, VA

UnscoredModerate · 29
$3,800213,688 mi

Comparison: 29 similar vehicles

Alexandria, VA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Clinton, MD

UnscoredLimited · 5
$3,800200,000 mi

Comparison: 5 similar vehicles

Clinton, MD

2008 Toyota Sienna XLE

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

2008 Toyota Sienna XLE

Woodbridge, VA

UnscoredLimited · 9
$3,950218,353 mi

Comparison: 9 similar vehicles

Woodbridge, VA

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Sterling, VA

UnscoredInsufficient · 3
$3,984167,258 mi

Comparison: 3 similar vehicles

Sterling, VA

2010 Mazda MAZDA5 Touring

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

2010 Mazda MAZDA5 Touring

Sykesville, MD

UnscoredInsufficient · 0
$3,990186,057 mi

Sykesville, MD

2010 Kia Sedona LX

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

2010 Kia Sedona LX

Laurel, MD

UnscoredLimited · 5
$3,990176,363 mi

Comparison: 5 similar vehicles

Laurel, MD

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

Sterling, VA

UnscoredModerate · 35
$3,995213,103 mi

Comparison: 35 similar vehicles

Sterling, VA

2013 Honda Odyssey EX

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

2013 Honda Odyssey EX

Stafford, VA

UnscoredInsufficient · 3
$3,999231,948 mi

Comparison: 3 similar vehicles

Stafford, VA

2009 Volkswagen Routan S

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

2009 Volkswagen Routan S

Chantilly, VA

UnscoredInsufficient · 0
$3,999178,648 mi

Chantilly, VA

2008 Kia Sedona LX

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

2008 Kia Sedona LX

Fredericksburg, VA

UnscoredInsufficient · 0
$3,999169,875 mi

Fredericksburg, VA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Frederick, MD

Salvage title
$3,999155,188 mi

Frederick, MD

2012 Toyota Sienna LE

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

2012 Toyota Sienna LE

Alexandria, VA

UnscoredModerate · 24
$4,295219,232 mi

Comparison: 24 similar vehicles

Alexandria, VA

2012 Toyota Sienna LE

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

2012 Toyota Sienna LE

Frederick, MD

UnscoredModerate · 29
$4,299135,336 mi

Comparison: 29 similar vehicles

Frederick, MD

2009 Toyota Sienna LE

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

2009 Toyota Sienna LE

Clinton, MD

UnscoredLimited · 7
$4,400166,200 mi

Comparison: 7 similar vehicles

Clinton, MD

2013 Chrysler Town & Country Touring

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

2013 Chrysler Town & Country Touring

Dumfries, VA

UnscoredModerate · 40
$4,450151,071 mi

Comparison: 40 similar vehicles

Dumfries, VA

2009 Toyota Sienna XLE

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

2009 Toyota Sienna XLE

Woodbridge, VA

UnscoredInsufficient · 3
$4,450207,077 mi

Comparison: 3 similar vehicles

Woodbridge, VA

2007 Honda Odyssey Touring

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

2007 Honda Odyssey Touring

Fredericksburg, VA

UnscoredInsufficient · 3
$4,495185,000 mi

Comparison: 3 similar vehicles

Fredericksburg, VA

2011 Kia Sedona EX

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

2011 Kia Sedona EX

Winchester, VA

UnscoredInsufficient · 0
$4,499157,358 mi

Winchester, VA

2003 Honda Odyssey EX

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

2003 Honda Odyssey EX

Sterling, VA

UnscoredInsufficient · 3
$4,499150,995 mi

Comparison: 3 similar vehicles

Sterling, VA

2004 Toyota Sienna XLE

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

2004 Toyota Sienna XLE

Winchester, VA

UnscoredLimited · 7
$4,500265,000 mi

Comparison: 7 similar vehicles

Winchester, VA

2004 Toyota Sienna CE

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

2004 Toyota Sienna CE

Arlington, VA

UnscoredInsufficient · 3
$4,554170,441 mi

Comparison: 3 similar vehicles

Arlington, VA

2001 Ford Windstar SEL

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

2001 Ford Windstar SEL

Stafford, VA

UnscoredInsufficient · 0
$4,600145,000 mi

Stafford, VA

2001 Nissan Quest SE

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

2001 Nissan Quest SE

Kensington, MD

UnscoredInsufficient · 0
$4,60067,389 mi

Kensington, MD

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Sterling, VA

UnscoredLimited · 6
$4,689213,593 mi

Comparison: 6 similar vehicles

Sterling, VA

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

Washington, DC

UnscoredModerate · 24
$4,750152,466 mi

Comparison: 24 similar vehicles

Washington, DC

2011 Toyota Sienna XLE

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

2011 Toyota Sienna XLE

Manassas, VA

UnscoredLimited · 8
$4,894300,791 mi

Comparison: 8 similar vehicles

Manassas, VA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Rockville, MD

UnscoredLimited · 6
$4,895177,433 mi

Comparison: 6 similar vehicles

Rockville, MD

2005 Honda Odyssey EX

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

2005 Honda Odyssey EX

Warrenton, VA

UnscoredModerate · 21
$4,900155,565 mi

Comparison: 21 similar vehicles

Warrenton, VA

2016 Dodge Grand Caravan SXT

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

2016 Dodge Grand Caravan SXT

Martinsburg, WV

UnscoredModerate · 32
$4,995149,856 mi

Comparison: 32 similar vehicles

Martinsburg, WV

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

Fredericksburg, VA

UnscoredLimited · 11
$4,995165,824 mi

Comparison: 11 similar vehicles

Fredericksburg, VA

2012 Nissan Quest SV

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

2012 Nissan Quest SV

Manassas, VA

UnscoredInsufficient · 0
$4,995148,407 mi

Manassas, VA

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

Arlington, VA

UnscoredInsufficient · 0
$4,995139,032 mi

Arlington, VA

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Sterling, VA

UnscoredInsufficient · 3
$4,995174,010 mi

Comparison: 3 similar vehicles

Sterling, VA

2019 Dodge Grand Caravan SXT

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

2019 Dodge Grand Caravan SXT

Capitol Heights, MD

UnscoredLimited · 6
$4,999142,155 mi

Comparison: 6 similar vehicles

Capitol Heights, MD

2015 Chrysler Town & Country Touring

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

2015 Chrysler Town & Country Touring

Fredericksburg, VA

UnscoredInsufficient · 3
$4,999182,213 mi

Comparison: 3 similar vehicles

Fredericksburg, VA

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

Leesburg, VA

UnscoredLimited · 19
$4,999136,930 mi

Comparison: 19 similar vehicles

Leesburg, VA

2007 Honda Odyssey Touring

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

2007 Honda Odyssey Touring

Jessup, MD

UnscoredLimited · 9
$5,000152,123 mi

Comparison: 9 similar vehicles

Jessup, MD

2004 Honda Odyssey EX

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

2004 Honda Odyssey EX

Front Royal, VA

UnscoredInsufficient · 3
$5,200154,965 mi

Comparison: 3 similar vehicles

Front Royal, VA

2011 Nissan Quest S

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

2011 Nissan Quest S

Sterling, VA

UnscoredInsufficient · 0
$5,350111,523 mi

Sterling, VA

2006 Honda Odyssey EX

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

2006 Honda Odyssey EX

Rockville, MD

UnscoredInsufficient · 4
$5,394203,890 mi

Comparison: 4 similar vehicles

Rockville, MD

2013 Toyota Sienna L

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

2013 Toyota Sienna L

Kensington, MD

UnscoredInsufficient · 3
$5,400205,253 mi

Comparison: 3 similar vehicles

Kensington, MD

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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