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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

1,103 listings found

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

Springfield, MA

UnscoredInsufficient · 3
$3,799151,884 mi

Comparison: 3 similar vehicles

Springfield, MA

2009 Dodge Grand Caravan SXT

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

2009 Dodge Grand Caravan SXT

Worcester, MA

UnscoredInsufficient · 3
$3,850183,049 mi

Comparison: 3 similar vehicles

Worcester, MA

2011 Honda Odyssey LX

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

2011 Honda Odyssey LX

Chelmsford, MA

UnscoredLimited · 8
$3,995281,864 mi

Comparison: 8 similar vehicles

Chelmsford, MA

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

Chelmsford, MA

UnscoredLimited · 10
$4,495147,525 mi

Comparison: 10 similar vehicles

Chelmsford, MA

2004 Toyota Sienna LE

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

2004 Toyota Sienna LE

Chelmsford, MA

UnscoredInsufficient · 0
$4,495191,963 mi

Chelmsford, MA

2012 Toyota Sienna Base

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

2012 Toyota Sienna Base

Springfield, MA

UnscoredLimited · 7
$4,499206,161 mi

Comparison: 7 similar vehicles

Springfield, MA

2007 Toyota Sienna CE

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

2007 Toyota Sienna CE

Springfield, MA

UnscoredLimited · 6
$4,750186,277 mi

Comparison: 6 similar vehicles

Springfield, MA

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

Hillsborough, NH

UnscoredLimited · 5
$4,795163,000 mi

Comparison: 5 similar vehicles

Hillsborough, NH

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

Pelham, NH

UnscoredLimited · 5
$4,895207,195 mi

Comparison: 5 similar vehicles

Pelham, NH

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

Southwick, MA

UnscoredLimited · 14
$4,995157,000 mi

Comparison: 14 similar vehicles

Southwick, MA

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

Marlborough, MA

UnscoredInsufficient · 0
$4,995164,122 mi

Marlborough, MA

2010 Honda Odyssey Touring

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

2010 Honda Odyssey Touring

Springfield, MA

UnscoredInsufficient · 0
$4,999202,743 mi

Springfield, MA

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

Springfield, MA

UnscoredLimited · 9
$5,200158,437 mi

Comparison: 9 similar vehicles

Springfield, MA

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

Stow, MA

UnscoredLimited · 5
$5,495178,000 mi

Comparison: 5 similar vehicles

Stow, MA

2010 Toyota Sienna LE

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

2010 Toyota Sienna LE

Chelmsford, MA

UnscoredInsufficient · 0
$5,495179,826 mi

Chelmsford, MA

2007 Hyundai Entourage GLS

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

2007 Hyundai Entourage GLS

Northbridge, MA

UnscoredInsufficient · 0
$5,495136,500 mi

Northbridge, MA

2015 Kia Sedona LX

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

2015 Kia Sedona LX

Chelmsford, MA

UnscoredLimited · 5
$5,995149,857 mi

Comparison: 5 similar vehicles

Chelmsford, MA

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

Stow, MA

UnscoredInsufficient · 3
$5,995101,000 mi

Comparison: 3 similar vehicles

Stow, MA

2002 Toyota Sienna CE

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

2002 Toyota Sienna CE

Northbridge, MA

UnscoredInsufficient · 0
$5,995116,460 mi

Northbridge, MA

2015 Dodge Grand Caravan American Value Package

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

2015 Dodge Grand Caravan American Value Package

Springfield, MA

UnscoredLimited · 11
$5,999132,000 mi

Comparison: 11 similar vehicles

Springfield, MA

2014 Dodge Grand Caravan R/T

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

2014 Dodge Grand Caravan R/T

Framingham, MA

UnscoredLimited · 5
$5,999189,715 mi

Comparison: 5 similar vehicles

Framingham, MA

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

Springfield, MA

UnscoredModerate · 22
$5,999192,966 mi

Comparison: 22 similar vehicles

Springfield, MA

2008 Toyota Sienna XLE

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

2008 Toyota Sienna XLE

Springfield, MA

UnscoredLimited · 5
$5,999222,274 mi

Comparison: 5 similar vehicles

Springfield, MA

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

Springfield, MA

UnscoredLimited · 10
$6,350122,854 mi

Comparison: 10 similar vehicles

Springfield, MA

2013 Honda Odyssey EX-L

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

2013 Honda Odyssey EX-L

Holyoke, MA

UnscoredInsufficient · 4
$6,400212,240 mi

Comparison: 4 similar vehicles

Holyoke, MA

2014 Honda Odyssey EX

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

2014 Honda Odyssey EX

Springfield, MA

UnscoredModerate · 26
$6,499203,333 mi

Comparison: 26 similar vehicles

Springfield, MA

2011 Honda Odyssey EX

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

2011 Honda Odyssey EX

Springfield, MA

UnscoredLimited · 7
$6,599137,140 mi

Comparison: 7 similar vehicles

Springfield, MA

2016 Honda Odyssey EX-L

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

2016 Honda Odyssey EX-L

Springfield, MA

UnscoredInsufficient · 4
$6,750199,839 mi

Comparison: 4 similar vehicles

Springfield, MA

2013 Honda Odyssey EX-L

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

2013 Honda Odyssey EX-L

Holyoke, MA

UnscoredInsufficient · 4
$6,800190,877 mi

Comparison: 4 similar vehicles

Holyoke, MA

2004 Honda Odyssey EX

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

2004 Honda Odyssey EX

Chicopee, MA

UnscoredLimited · 6
$6,99091,073 mi

Comparison: 6 similar vehicles

Chicopee, MA

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

Westfield, MA

Fair PriceModerate · 30
$6,995115,311 mi

Market: $2,500 – $20,995

Comparison: 30 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 9 days listed (based on current market benchmarks)

Westfield, MA

2013 Honda Odyssey EX

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

2013 Honda Odyssey EX

Springfield, MA

UnscoredLimited · 12
$6,995172,742 mi

Comparison: 12 similar vehicles

Springfield, MA

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

Worcester, MA

UnscoredLimited · 12
$6,999154,426 mi

Comparison: 12 similar vehicles

Worcester, MA

2011 Kia Sedona LX

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

2011 Kia Sedona LX

Manchester, NH

UnscoredInsufficient · 0
$6,99978,390 mi

Manchester, NH

2011 Nissan Quest SL

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

2011 Nissan Quest SL

Springfield, MA

UnscoredInsufficient · 0
$7,000147,514 mi

Springfield, MA

2018 Dodge Grand Caravan SE Plus

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

2018 Dodge Grand Caravan SE Plus

Lowell, MA

UnscoredLimited · 17
$7,195153,083 mi

Comparison: 17 similar vehicles

Lowell, MA

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

Westfield, MA

UnscoredModerate · 47
$7,299130,246 mi

Comparison: 47 similar vehicles

Westfield, MA

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

Ayer, MA

UnscoredLimited · 6
$7,399163,438 mi

Comparison: 6 similar vehicles

Ayer, MA

2015 Kia Sedona SX Limited

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

2015 Kia Sedona SX Limited

Westfield, MA

UnscoredLimited · 5
$7,495137,373 mi

Comparison: 5 similar vehicles

Westfield, MA

2018 Dodge Grand Caravan SXT

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

2018 Dodge Grand Caravan SXT

Springfield, MA

UnscoredModerate · 32
$7,499132,348 mi

Comparison: 32 similar vehicles

Springfield, MA

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

Leicester, MA

UnscoredLimited · 7
$7,600162,729 mi

Comparison: 7 similar vehicles

Leicester, MA

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

Southwick, MA

UnscoredLimited · 6
$7,795155,655 mi

Comparison: 6 similar vehicles

Southwick, MA

2014 Honda Odyssey LX

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

2014 Honda Odyssey LX

Springfield, MA

UnscoredLimited · 7
$7,850170,757 mi

Comparison: 7 similar vehicles

Springfield, MA

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

Northampton, MA

Fair PriceModerate · 23
$7,90063,161 mi

Market: $3,070 – $12,995

Comparison: 23 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 76 days listed (based on current market benchmarks)

Northampton, MA

2017 Chrysler Pacifica Touring Plus

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

2017 Chrysler Pacifica Touring Plus

Worcester, MA

UnscoredInsufficient · 3
$7,995165,901 mi

Comparison: 3 similar vehicles

Worcester, MA

2017 Dodge Grand Caravan GT

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

2017 Dodge Grand Caravan GT

Southwick, MA

Fair PriceLimited · 13
$7,995112,411 mi

Market: $6,699 – $15,596

Comparison: 13 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 126 days listed (based on current market benchmarks)

Southwick, MA

2013 Toyota Sienna LE

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

2013 Toyota Sienna LE

Auburn, MA

UnscoredLimited · 9
$7,995175,003 mi

Comparison: 9 similar vehicles

Auburn, MA

2007 Honda Odyssey EX

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

2007 Honda Odyssey EX

Acton, MA

Fair PriceLimited · 16
$7,99587,651 mi

Market: $2,900 – $8,900

Comparison: 16 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 68 days listed (based on current market benchmarks)

Acton, MA

2018 Dodge Grand Caravan SE Plus

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

2018 Dodge Grand Caravan SE Plus

West Springfield, MA

UnscoredLimited · 19
$7,999125,999 mi

Comparison: 19 similar vehicles

West Springfield, MA

2015 Honda Odyssey EX-L

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

2015 Honda Odyssey EX-L

Springfield, MA

UnscoredLimited · 5
$7,999189,330 mi

Comparison: 5 similar vehicles

Springfield, MA

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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