Skip to main content
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

317 listings found

1999 Toyota Sienna CE

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

1999 Toyota Sienna CE

Montevallo, AL

UnscoredInsufficient · 0
$2,500247,867 mi

Montevallo, AL

2012 Toyota Sienna Base

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

2012 Toyota Sienna Base

Auburn, AL

UnscoredInsufficient · 0
$4,999229,120 mi

Auburn, AL

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

Haleyville, AL

UnscoredInsufficient · 0
$5,750261,097 mi

Haleyville, AL

2008 Toyota Sienna XLE

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

2008 Toyota Sienna XLE

Meridianville, AL

UnscoredInsufficient · 4
$5,900227,968 mi

Comparison: 4 similar vehicles

Meridianville, AL

2011 Toyota Sienna LE

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

2011 Toyota Sienna LE

Harvest, AL

UnscoredLimited · 14
$5,995194,580 mi

Comparison: 14 similar vehicles

Harvest, AL

2006 Toyota Sienna LE

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

2006 Toyota Sienna LE

Huntsville, AL

UnscoredLimited · 7
$6,450Mileage not verified

Comparison: 7 similar vehicles

Huntsville, AL

2008 Toyota Sienna XLE

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

2008 Toyota Sienna XLE

Auburn, AL

UnscoredInsufficient · 4
$7,495226,898 mi

Comparison: 4 similar vehicles

Auburn, AL

2014 Toyota Sienna XLE

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

2014 Toyota Sienna XLE

Birmingham, AL

UnscoredModerate · 36
$7,900222,214 mi

Comparison: 36 similar vehicles

Birmingham, AL

2011 Toyota Sienna XLE

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

2011 Toyota Sienna XLE

Athens, AL

UnscoredLimited · 14
$8,000211,359 mi

Comparison: 14 similar vehicles

Athens, AL

2011 Toyota Sienna LE

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

2011 Toyota Sienna LE

Cullman, AL

UnscoredLimited · 12
$8,050242,184 mi

Comparison: 12 similar vehicles

Cullman, AL

2014 Toyota Sienna LE

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

2014 Toyota Sienna LE

Florence, AL

UnscoredLimited · 7
$8,200211,598 mi

Comparison: 7 similar vehicles

Florence, AL

2011 Toyota Sienna LE

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

2011 Toyota Sienna LE

Enterprise, AL

UnscoredLimited · 8
$8,500199,799 mi

Comparison: 8 similar vehicles

Enterprise, AL

2010 Toyota Sienna XLE

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

2010 Toyota Sienna XLE

Albertville, AL

UnscoredInsufficient · 0
$8,647160,409 mi

Albertville, AL

No Photo

2005 Toyota Sienna XLE

Phenix City, AL

UnscoredInsufficient · 0
$8,995177,866 mi

Phenix City, AL

2012 Toyota Sienna Limited

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

2012 Toyota Sienna Limited

Jasper, AL

UnscoredInsufficient · 0
$10,990248,359 mi

Jasper, AL

2014 Toyota Sienna XLE

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

2014 Toyota Sienna XLE

Montgomery, AL

Fair PriceModerate · 23
$10,995Mileage not verified

Market: $7,900 – $21,998

Comparison: 23 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 6 days listed (based on current market benchmarks)

Montgomery, AL

2014 Toyota Sienna XLE

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

2014 Toyota Sienna XLE

Auburn, AL

Fair PriceModerate · 20
$11,500110,500 mi

Market: $7,900 – $21,998

Comparison: 20 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 19 days listed (based on current market benchmarks)

Auburn, AL

2017 Toyota Sienna SE Premium

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

2017 Toyota Sienna SE Premium

Harvest, AL

UnscoredInsufficient · 0
$11,995190,162 mi

Harvest, AL

2014 Toyota Sienna LE

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

2014 Toyota Sienna LE

Auburn, AL

UnscoredInsufficient · 3
$11,995167,139 mi

Comparison: 3 similar vehicles

Auburn, AL

2014 Toyota Sienna LE

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

2014 Toyota Sienna LE

Auburn, AL

UnscoredInsufficient · 3
$11,995163,416 mi

Comparison: 3 similar vehicles

Auburn, AL

2011 Toyota Sienna XLE

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

2011 Toyota Sienna XLE

Oxford, AL

UnscoredLimited · 12
$11,995231,032 mi

Comparison: 12 similar vehicles

Oxford, AL

2011 Toyota Sienna Limited

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

2011 Toyota Sienna Limited

Pelham, AL

UnscoredInsufficient · 0
$11,997183,735 mi

Pelham, AL

2013 Toyota Sienna Limited

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

2013 Toyota Sienna Limited

Bay Minette, AL

UnscoredInsufficient · 0
$12,895179,812 mi

Bay Minette, AL

2015 Toyota Sienna XLE

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

2015 Toyota Sienna XLE

Haleyville, AL

UnscoredModerate · 29
$12,900141,573 mi

Comparison: 29 similar vehicles

Haleyville, AL

2014 Toyota Sienna XLE

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

2014 Toyota Sienna XLE

Cullman, AL

UnscoredModerate · 36
$12,990146,035 mi

Comparison: 36 similar vehicles

Cullman, AL

2015 Toyota Sienna XLE

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

2015 Toyota Sienna XLE

Cullman, AL

UnscoredModerate · 30
$13,990145,594 mi

Comparison: 30 similar vehicles

Cullman, AL

2017 Toyota Sienna LE

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

2017 Toyota Sienna LE

Florence, AL

UnscoredLimited · 17
$13,999158,500 mi

Comparison: 17 similar vehicles

Florence, AL

2013 Toyota Sienna XLE

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

2013 Toyota Sienna XLE

Mobile, AL

UnscoredInsufficient · 0
$14,988164,568 mi

Mobile, AL

2015 Toyota Sienna XLE Premium

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

2015 Toyota Sienna XLE Premium

Albertville, AL

UnscoredLimited · 5
$14,990159,342 mi

Comparison: 5 similar vehicles

Albertville, AL

2015 Toyota Sienna LE

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

2015 Toyota Sienna LE

Auburn, AL

UnscoredLimited · 15
$14,995125,498 mi

Comparison: 15 similar vehicles

Auburn, AL

2015 Toyota Sienna XLE

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

2015 Toyota Sienna XLE

Auburn, AL

UnscoredLimited · 6
$14,995140,198 mi

Comparison: 6 similar vehicles

Auburn, AL

No Photo

2014 Toyota Sienna LE

Montgomery, AL

OverpricedLimited · 12
$15,000Mileage not verified

Market: $6,783 – $13,995

Comparison: 12 similar vehicles

Priced ~7% above the typical market range for similar vehicles (based on current market benchmarks)

Montgomery, AL

2015 Toyota Sienna XLE Premium

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

2015 Toyota Sienna XLE Premium

Auburn, AL

UnscoredLimited · 5
$15,995159,846 mi

Comparison: 5 similar vehicles

Auburn, AL

2020 Toyota Sienna LE

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

2020 Toyota Sienna LE

Huntsville, AL

UnscoredModerate · 33
$16,500163,557 mi

Comparison: 33 similar vehicles

Huntsville, AL

2017 Toyota Sienna Limited

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

2017 Toyota Sienna Limited

Florence, AL

UnscoredLimited · 6
$16,988166,789 mi

Comparison: 6 similar vehicles

Florence, AL

2012 Toyota Sienna LE

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

2012 Toyota Sienna LE

Bessemer, AL

Fair PriceLimited · 15
$16,990104,745 mi

Market: $7,950 – $23,900

Comparison: 15 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 90 days listed (based on current market benchmarks)

Bessemer, AL

2020 Toyota Sienna LE

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

2020 Toyota Sienna LE

Mobile, AL

UnscoredInsufficient · 0
$17,62432,864 mi

Mobile, AL

2018 Toyota Sienna XLE

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

2018 Toyota Sienna XLE

Daphne, AL

UnscoredInsufficient · 3
$17,873147,946 mi

Comparison: 3 similar vehicles

Daphne, AL

2015 Toyota Sienna XLE

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

2015 Toyota Sienna XLE

Prattville, AL

UnscoredModerate · 22
$17,990134,106 mi

Comparison: 22 similar vehicles

Prattville, AL

2016 Toyota Sienna XLE

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

2016 Toyota Sienna XLE

Killen, AL

UnscoredLimited · 9
$18,900109,193 mi

Comparison: 9 similar vehicles

Killen, AL

2017 Toyota Sienna XLE

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

2017 Toyota Sienna XLE

Albertville, AL

Fair PriceRobust · 52
$18,990117,000 mi

Market: $10,995 – $42,991

Comparison: 52 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 15 days listed (based on current market benchmarks)

Albertville, AL

2018 Toyota Sienna XLE Premium

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

2018 Toyota Sienna XLE Premium

Foley, AL

UnscoredInsufficient · 0
$19,052140,874 mi

Foley, AL

2019 Toyota Sienna Limited Premium

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

2019 Toyota Sienna Limited Premium

Pelham, AL

UnscoredInsufficient · 0
$19,300160,396 mi

Pelham, AL

2020 Toyota Sienna LE

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

2020 Toyota Sienna LE

Birmingham, AL

UnscoredModerate · 32
$19,894135,718 mi

Comparison: 32 similar vehicles

Birmingham, AL

2016 Toyota Sienna XLE

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

2016 Toyota Sienna XLE

Birmingham, AL

UnscoredLimited · 9
$19,895136,081 mi

Comparison: 9 similar vehicles

Birmingham, AL

2015 Toyota Sienna Limited

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

2015 Toyota Sienna Limited

Cottondale, AL

UnscoredLimited · 8
$19,90084,836 mi

Comparison: 8 similar vehicles

Cottondale, AL

2017 Toyota Sienna XLE

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

2017 Toyota Sienna XLE

Montgomery, AL

UnscoredModerate · 31
$19,995137,633 mi

Comparison: 31 similar vehicles

Montgomery, AL

2019 Toyota Sienna XLE

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

2019 Toyota Sienna XLE

Midfield, AL

Salvage title
$19,99939,500 mi

Midfield, AL

2019 Toyota Sienna L

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

2019 Toyota Sienna L

Mobile, AL

UnscoredInsufficient · 0
$20,298104,418 mi

Mobile, AL

2020 Toyota Sienna XLE

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

2020 Toyota Sienna XLE

Birmingham, AL

UnscoredLimited · 7
$21,138202,099 mi

Comparison: 7 similar vehicles

Birmingham, AL

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

Explore Popular Markets

Independent, evidence-backed pricing intelligence for every major US metro

We collect personal information as described in our Notice at Collection and Privacy Policy. You may opt out of the sale or sharing of your personal information.