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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 10, 2026

7.3M+

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

1,588 listings found

2015 Nissan LEAF S

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

2015 Nissan LEAF S

Windham, CT

UnscoredInsufficient · 4
$4,00047,439 mi

Comparison: 4 similar vehicles

Windham, CT

2015 Nissan LEAF SV

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

2015 Nissan LEAF SV

Mendon, MA

UnscoredInsufficient · 0
$4,49969,609 mi

Mendon, MA

2013 Nissan LEAF S

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

2013 Nissan LEAF S

Shrewsbury, MA

UnscoredInsufficient · 0
$4,49970,035 mi

Shrewsbury, MA

2015 Tesla Model S 85D

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

2015 Tesla Model S 85D

Waterbury, CT

UnscoredInsufficient · 0
$11,495135,986 mi

Waterbury, CT

2025 Nissan Leaf S

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

2025 Nissan Leaf S

Watertown, CT

UnscoredInsufficient · 0
$14,0009,383 mi

Watertown, CT

2019 Nissan Leaf SL

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

2019 Nissan Leaf SL

North Kingstown, RI

UnscoredInsufficient · 0
$14,39123,872 mi

North Kingstown, RI

2023 Nissan Leaf S

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

2023 Nissan Leaf S

Hartford, CT

UnscoredInsufficient · 0
$14,40440,726 mi

Hartford, CT

2015 Tesla Model S 70D

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

2015 Tesla Model S 70D

Hartford, CT

UnscoredInsufficient · 0
$14,999122,420 mi

Hartford, CT

2024 Nissan LEAF S

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

2024 Nissan LEAF S

Johnston, RI

UnscoredInsufficient · 0
$15,19716,096 mi

Johnston, RI

2022 Nissan LEAF S

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

2022 Nissan LEAF S

Hartford, CT

UnscoredInsufficient · 0
$15,19817,625 mi

Hartford, CT

2019 Chevrolet Bolt EV Premier

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

2019 Chevrolet Bolt EV Premier

Webster, MA

UnscoredInsufficient · 0
$15,94257,894 mi

Webster, MA

2019 Tesla Model 3 Base

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

2019 Tesla Model 3 Base

North Attleborough, MA

Unscored
$15,994126,541 mi

Comparison: 12 similar vehicles

North Attleborough, MA

2021 Chevrolet Bolt EV Premier

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

2021 Chevrolet Bolt EV Premier

New Britain, CT

UnscoredInsufficient · 0
$15,99575,460 mi

New Britain, CT

2023 Hyundai Kona EV SE

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

2023 Hyundai Kona EV SE

Worcester, MA

Unscored
$15,99856,651 mi

Comparison: 7 similar vehicles

Worcester, MA

2022 Nissan LEAF SV Plus

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

2022 Nissan LEAF SV Plus

Cheshire, CT

UnscoredInsufficient · 0
$16,31129,777 mi

Cheshire, CT

2023 Nissan Leaf SV Plus

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

2023 Nissan Leaf SV Plus

Old Saybrook, CT

UnscoredInsufficient · 0
$16,53779,185 mi

Old Saybrook, CT

2021 Hyundai Kona EV SEL

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

2021 Hyundai Kona EV SEL

Westborough, MA

UnscoredInsufficient · 0
$16,59522,237 mi

Westborough, MA

2021 Hyundai Kona EV Ultimate

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

2021 Hyundai Kona EV Ultimate

Simsbury, CT

UnscoredInsufficient · 0
$16,68355,617 mi

Simsbury, CT

2022 Chevrolet Bolt EUV LT

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

2022 Chevrolet Bolt EUV LT

North Kingstown, RI

Unscored
$16,89540,385 mi

Comparison: 7 similar vehicles

North Kingstown, RI

2021 Nissan Leaf S

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

2021 Nissan Leaf S

Attleboro, MA

UnscoredInsufficient · 0
$16,90023,820 mi

Attleboro, MA

2021 Tesla Model Y Long Range

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

2021 Tesla Model Y Long Range

Wallingford, CT

UnscoredInsufficient · 4
$16,900173,000 mi

Comparison: 4 similar vehicles

Wallingford, CT

2022 Chevrolet Bolt EUV Premier

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

2022 Chevrolet Bolt EUV Premier

Hadley, MA

Unscored
$16,91396,542 mi

Comparison: 31 similar vehicles

Hadley, MA

2023 Nissan Leaf SV Plus

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

2023 Nissan Leaf SV Plus

Marlborough, MA

OverpricedLimited · 13
$16,99644,507 mi

Market: $16,195 – $16,794

Comparison: 13 similar vehicles

Priced ~1% above the typical market range for similar vehicles (based on current market benchmarks)

Marlborough, MA

2022 Chevrolet Bolt EUV LT

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

2022 Chevrolet Bolt EUV LT

Bristol, CT

Unscored
$16,99936,829 mi

Comparison: 6 similar vehicles

Bristol, CT

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

Unscored
$17,00019,706 mi

Comparison: 5 similar vehicles

North Kingstown, RI

2018 Tesla Model 3 Long Range

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

2018 Tesla Model 3 Long Range

Worcester, MA

Fair PriceLimited · 13
$17,398111,990 mi

Market: $10,995 – $21,590

Comparison: 13 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 82 days listed (based on current market benchmarks)

Worcester, MA

2019 Chevrolet Bolt EV Premier

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

2019 Chevrolet Bolt EV Premier

Hartford, CT

UnscoredInsufficient · 0
$17,4755,316 mi

Hartford, CT

2020 Hyundai Kona EV Ultimate

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

2020 Hyundai Kona EV Ultimate

Marlborough, MA

UnscoredInsufficient · 0
$17,49542,628 mi

Marlborough, MA

2021 Ford Mustang Mach-E Select AWD

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

2021 Ford Mustang Mach-E Select AWD

Glastonbury, CT

Fair PriceLimited · 17
$17,49884,371 mi

Market: $13,995 – $24,093

Comparison: 17 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 136 days listed (based on current market benchmarks)

Glastonbury, CT

2021 Volkswagen ID.4 1st Edition

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

2021 Volkswagen ID.4 1st Edition

Framingham, MA

UnscoredInsufficient · 0
$17,59092,144 mi

Framingham, MA

2018 Tesla Model 3 Long Range Dual Motor

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

2018 Tesla Model 3 Long Range Dual Motor

East Greenwich, RI

Unscored
$17,777110,515 mi

Comparison: 5 similar vehicles

East Greenwich, RI

2023 Kia EV6 GT-Line

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

2023 Kia EV6 GT-Line

Plainville, CT

UnscoredInsufficient · 3
$17,995134,714 mi

Comparison: 3 similar vehicles

Plainville, CT

2019 Nissan Leaf SL Plus

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

2019 Nissan Leaf SL Plus

Waterbury, CT

OverpricedModerate · 30
$17,99821,971 mi

Market: $13,900 – $14,390

Comparison: 30 similar vehicles

Priced ~25% above the typical market range for similar vehicles (based on current market benchmarks)

Waterbury, CT

2023 Chevrolet Bolt EUV LT

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

2023 Chevrolet Bolt EUV LT

Bristol, CT

Fair PriceLimited · 10
$18,01249,636 mi

Market: $18,210 – $19,995

Comparison: 10 similar vehicles

Fairly priced — priced near the comparable range, but not far enough below it to qualify as a Great Deal · 26 days listed (based on current market benchmarks)

Bristol, CT

2023 Chevrolet Bolt EV LT

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

2023 Chevrolet Bolt EV LT

East Hartford, CT

UnscoredInsufficient · 0
$18,06745,709 mi

East Hartford, CT

2024 Hyundai IONIQ 5 SE

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

2024 Hyundai IONIQ 5 SE

Attleboro, MA

UnscoredInsufficient · 0
$18,19761,153 mi

Attleboro, MA

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

UnscoredInsufficient · 4
$18,3009,962 mi

Comparison: 4 similar vehicles

North Kingstown, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

Unscored
$18,30011,742 mi

Comparison: 5 similar vehicles

North Kingstown, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

North Kingstown, RI

Unscored
$18,39718,732 mi

Comparison: 5 similar vehicles

North Kingstown, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

Warwick, RI

UnscoredInsufficient · 0
$18,41521,103 mi

Warwick, RI

2025 Nissan Leaf SV PLUS

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

2025 Nissan Leaf SV PLUS

Framingham, MA

Fair PriceModerate · 35
$18,49516,147 mi

Market: $17,129 – $21,447

Comparison: 35 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 25 days listed (based on current market benchmarks)

Framingham, MA

2024 Nissan LEAF SV PLUS

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

2024 Nissan LEAF SV PLUS

Framingham, MA

Unscored
$18,49530,696 mi

Comparison: 22 similar vehicles

Framingham, MA

2019 Tesla Model 3 Long Range

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

2019 Tesla Model 3 Long Range

Hartford, CT

Fair PriceModerate · 23
$18,499102,222 mi

Market: $6,900 – $25,000

Comparison: 23 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 67 days listed (based on current market benchmarks)

Hartford, CT

2020 Tesla Model 3 Base

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

2020 Tesla Model 3 Base

Framingham, MA

Fair PriceLimited · 13
$18,590103,510 mi

Market: $17,900 – $24,589

Comparison: 13 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 297 days listed (based on current market benchmarks)

Framingham, MA

2017 Tesla Model S 75D

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

2017 Tesla Model S 75D

Auburn, MA

UnscoredInsufficient · 0
$18,79984,360 mi

Auburn, MA

2023 Nissan Ariya Engage

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

2023 Nissan Ariya Engage

Hartford, CT

UnscoredInsufficient · 0
$18,89452,890 mi

Hartford, CT

2023 Subaru SOLTERRA Premium

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

2023 Subaru SOLTERRA Premium

Waterbury, CT

Unscored
$18,90842,884 mi

Comparison: 5 similar vehicles

Waterbury, CT

2023 Nissan Ariya Engage

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

2023 Nissan Ariya Engage

Milford, MA

UnscoredInsufficient · 4
$18,96743,984 mi

Comparison: 4 similar vehicles

Milford, MA

2022 Chevrolet Bolt EV LT

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

2022 Chevrolet Bolt EV LT

Vernon, CT

UnscoredInsufficient · 0
$18,98931,045 mi

Vernon, CT

2023 Volkswagen ID.4 PRO S PLUS

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

2023 Volkswagen ID.4 PRO S PLUS

Framingham, MA

Unscored
$18,99098,231 mi

Comparison: 10 similar vehicles

Framingham, 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 whose listings recently came off the market is leaving the market faster than its market baseline, and this listing has not been listed longer than the cohort’s typical time on market. A listing coming off the market is not always a sale. 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 time on market, 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 cohort of similar vehicles whose listings recently came off the market is leaving the market faster than its market baseline, the cohort meets minimum-sample and freshness requirements, and this specific listing has not been listed longer than the cohort's typical time on market. 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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