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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 · November 4, 2026

6.8M+

Vehicles tracked nationwide

6M+ searchable on oav.io

60,000+

US dealerships

Daily

Data pipeline

Comparable

Market-evidence analysis

New and used·Listings processed daily

Or explore the market

55 listings found

2015 Buick Encore Base

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

2015 Buick Encore Base

Chesapeake, VA

Unscored
$4,599158,000 mi

Comparison: 10 similar vehicles

Chesapeake, VA

2012 Buick Enclave Leather

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

2012 Buick Enclave Leather

Chesapeake, VA

Unscored
$4,990150,900 mi

Comparison: 10 similar vehicles

Chesapeake, VA

2014 Buick Enclave Leather

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

2014 Buick Enclave Leather

Chesapeake, VA

UnscoredInsufficient · 3
$4,995173,405 mi

Comparison: 3 similar vehicles

Chesapeake, VA

2012 Buick Enclave Leather

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

2012 Buick Enclave Leather

Chesapeake, VA

Unscored
$4,995154,864 mi

Comparison: 10 similar vehicles

Chesapeake, VA

2010 Buick Enclave CX

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

2010 Buick Enclave CX

Chesapeake, VA

UnscoredInsufficient · 0
$4,99595,016 mi

Chesapeake, VA

2015 Buick Enclave Leather

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

2015 Buick Enclave Leather

Chesapeake, VA

Unscored
$4,999156,191 mi

Comparison: 30 similar vehicles

Chesapeake, VA

2018 Buick Encore Sport Touring

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

2018 Buick Encore Sport Touring

Chesapeake, VA

UnscoredInsufficient · 0
$5,995133,145 mi

Chesapeake, VA

2016 Buick Encore Leather

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

2016 Buick Encore Leather

Chesapeake, VA

Unscored
$5,999140,819 mi

Comparison: 25 similar vehicles

Chesapeake, VA

2014 Buick Enclave Premium

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

2014 Buick Enclave Premium

Chesapeake, VA

Unscored
$5,999159,000 mi

Comparison: 5 similar vehicles

Chesapeake, VA

2007 Buick Lucerne CXL

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

2007 Buick Lucerne CXL

Chesapeake, VA

UnscoredInsufficient · 4
$5,999142,441 mi

Comparison: 4 similar vehicles

Chesapeake, VA

2016 Buick Encore Sport Touring

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

2016 Buick Encore Sport Touring

Chesapeake, VA

Unscored
$6,995104,357 mi

Comparison: 5 similar vehicles

Chesapeake, VA

2018 Buick Enclave Premium

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

2018 Buick Enclave Premium

Chesapeake, VA

Unscored
$6,999177,824 mi

Comparison: 21 similar vehicles

Chesapeake, VA

2016 Buick Enclave Premium

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

2016 Buick Enclave Premium

Chesapeake, VA

Unscored
$7,599149,000 mi

Comparison: 17 similar vehicles

Chesapeake, VA

2014 Buick Regal GS

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

2014 Buick Regal GS

Chesapeake, VA

UnscoredInsufficient · 4
$8,730133,000 mi

Comparison: 4 similar vehicles

Chesapeake, VA

2019 Buick Enclave Essence

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

2019 Buick Enclave Essence

Chesapeake, VA

UnscoredInsufficient · 4
$8,998163,602 mi

Comparison: 4 similar vehicles

Chesapeake, VA

2016 Buick Encore Base

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

2016 Buick Encore Base

Chesapeake, VA

Fair PriceModerate · 23
$9,000114,491 mi

Market: $9,102 – $12,876

Comparison: 23 similar vehicles

Fairly priced — priced near the comparable range, but not far enough below it to qualify as a Great Deal · 67 days listed (based on current market benchmarks)

Chesapeake, VA

2018 Buick Encore Preferred

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

2018 Buick Encore Preferred

Chesapeake, VA

Fair PriceModerate · 24
$9,99581,825 mi

Market: $6,499 – $13,900

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 38 days listed (based on current market benchmarks)

Chesapeake, VA

2020 Buick Encore Essence

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

2020 Buick Encore Essence

Chesapeake, VA

UnscoredInsufficient · 0
$11,257117,753 mi

Chesapeake, VA

2020 Buick Enclave Essence

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

2020 Buick Enclave Essence

Chesapeake, VA

Unscored
$11,370157,000 mi

Comparison: 7 similar vehicles

Chesapeake, VA

2019 Buick Encore Essence

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

2019 Buick Encore Essence

Chesapeake, VA

Unscored
$12,49096,000 mi

Comparison: 6 similar vehicles

Chesapeake, VA

2020 Buick Enclave Premium

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

2020 Buick Enclave Premium

Chesapeake, VA

Fair PriceModerate · 37
$21,44675,088 mi

Market: $20,995 – $26,798

Comparison: 37 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 2 days listed (based on current market benchmarks)

Chesapeake, VA

2024 Buick Envision Preferred

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

2024 Buick Envision Preferred

Chesapeake, VA

Unscored
$21,49852,500 mi

Comparison: 7 similar vehicles

Chesapeake, VA

2024 Buick Envision Preferred

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

2024 Buick Envision Preferred

Chesapeake, VA

Unscored
$22,79555,340 mi

Comparison: 5 similar vehicles

Chesapeake, VA

2021 Buick Enclave Avenir

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

2021 Buick Enclave Avenir

Chesapeake, VA

Fair PriceModerate · 22
$23,47979,506 mi

Market: $19,829 – $23,589

Comparison: 22 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 33 days listed (based on current market benchmarks)

Chesapeake, VA

2023 Buick Encore GX Essence

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

2023 Buick Encore GX Essence

Chesapeake, VA

Fair PriceModerate · 24
$23,80429,671 mi

Market: $21,499 – $26,787

Comparison: 24 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 46 days listed (based on current market benchmarks)

Chesapeake, VA

2022 Buick Enclave Premium

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

2022 Buick Enclave Premium

Chesapeake, VA

UnscoredInsufficient · 4
$23,98889,947 mi

Comparison: 4 similar vehicles

Chesapeake, VA

2026 Buick Envista Preferred

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

2026 Buick Envista Preferred

Chesapeake, VA

UnscoredInsufficient · 4
$25,79623,736 mi

Comparison: 4 similar vehicles

Chesapeake, VA

2024 Buick Encore GX Avenir

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

2024 Buick Encore GX Avenir

Chesapeake, VA

UnscoredInsufficient · 0
$26,44927,237 mi

Chesapeake, VA

2023 Buick Enclave Essence

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

2023 Buick Enclave Essence

Chesapeake, VA

Great DealModerate · 22
$27,98737,700 mi

Market: $31,651 – $31,997

Comparison: 22 similar vehicles

Competitively priced ~12% below the typical range compared to similar vehicles · 106 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Preferred

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

2026 Buick Envista Preferred

Chesapeake, VA

Fair PriceModerate · 38
$28,044Mileage not verified

Market: $27,005 – $30,109

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 59 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Preferred

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

2026 Buick Envista Preferred

Chesapeake, VA

Fair PriceModerate · 38
$28,044Mileage not verified

Market: $27,005 – $30,109

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 54 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Preferred

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

2026 Buick Envista Preferred

Chesapeake, VA

Fair PriceModerate · 38
$28,505Mileage not verified

Market: $27,005 – $30,109

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 59 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Preferred

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

2026 Buick Envista Preferred

Chesapeake, VA

Fair PriceModerate · 38
$28,505Mileage not verified

Market: $27,005 – $30,109

Comparison: 38 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 59 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Sport Touring

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

2026 Buick Envista Sport Touring

Chesapeake, VA

UnscoredInsufficient · 0
$28,75020,525 mi

Chesapeake, VA

2023 Buick Envision Essence

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

2023 Buick Envision Essence

Chesapeake, VA

Unscored
$30,39320,845 mi

Comparison: 8 similar vehicles

Chesapeake, VA

2026 Buick Envista Sport Touring

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

2026 Buick Envista Sport Touring

Chesapeake, VA

Fair PriceModerate · 43
$31,196Mileage not verified

Market: $28,532 – $32,494

Comparison: 43 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 14 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Sport Touring

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

2026 Buick Envista Sport Touring

Chesapeake, VA

Fair PriceModerate · 43
$31,326Mileage not verified

Market: $28,532 – $32,494

Comparison: 43 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 13 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Sport Touring

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

2026 Buick Envista Sport Touring

Chesapeake, VA

Fair PriceModerate · 43
$31,326Mileage not verified

Market: $28,532 – $32,494

Comparison: 43 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 13 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Encore GX Sport Touring

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

2026 Buick Encore GX Sport Touring

Chesapeake, VA

Fair PriceModerate · 25
$31,605Mileage not verified

Market: $31,158 – $34,261

Comparison: 25 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 187 days listed (based on current market benchmarks)

Chesapeake, VA

2023 Buick Enclave Essence

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

2023 Buick Enclave Essence

Chesapeake, VA

Fair PriceModerate · 22
$31,65137,138 mi

Market: $27,987 – $31,997

Comparison: 22 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 28 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envista Avenir

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

2026 Buick Envista Avenir

Chesapeake, VA

Fair PriceLimited · 15
$32,688Mileage not verified

Market: $32,395 – $34,484

Comparison: 15 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 59 days listed (based on current market benchmarks)

Chesapeake, VA

2025 Buick Enclave Preferred

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

2025 Buick Enclave Preferred

Chesapeake, VA

Unscored
$32,80128,584 mi

Comparison: 27 similar vehicles

Chesapeake, VA

2023 Buick Envision Avenir

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

2023 Buick Envision Avenir

Chesapeake, VA

Unscored
$33,04414,909 mi

Comparison: 5 similar vehicles

Chesapeake, VA

2026 Buick Encore GX Sport Touring

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

2026 Buick Encore GX Sport Touring

Chesapeake, VA

Fair PriceModerate · 25
$33,2422,710 mi

Market: $31,158 – $34,261

Comparison: 25 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 489 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Sport Touring

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

2026 Buick Envision Sport Touring

Chesapeake, VA

Fair PriceRobust · 62
$42,399Mileage not verified

Market: $41,985 – $49,759

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 334 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Sport Touring

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

2026 Buick Envision Sport Touring

Chesapeake, VA

Fair PriceRobust · 62
$44,383Mileage not verified

Market: $41,985 – $49,759

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 86 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Sport Touring

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

2026 Buick Envision Sport Touring

Chesapeake, VA

Fair PriceRobust · 62
$44,699769 mi

Market: $41,985 – $49,759

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 145 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Sport Touring

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

2026 Buick Envision Sport Touring

Chesapeake, VA

Fair PriceRobust · 62
$44,843Mileage not verified

Market: $41,985 – $49,759

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 86 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Sport Touring

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

2026 Buick Envision Sport Touring

Chesapeake, VA

Fair PriceRobust · 62
$47,267Mileage not verified

Market: $41,985 – $49,759

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 215 days listed (based on current market benchmarks)

Chesapeake, VA

2026 Buick Envision Avenir

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

2026 Buick Envision Avenir

Chesapeake, VA

Fair PriceModerate · 25
$51,791Mileage not verified

Market: $51,569 – $53,619

Comparison: 25 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 61 days listed (based on current market benchmarks)

Chesapeake, VA

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 recently 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.
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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