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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 21, 2026

6M+

Unique vehicles analyzed

as of October 20, 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

1,185 listings found

2013 Nissan LEAF SL

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

2013 Nissan LEAF SL

Auburn, MA

UnscoredInsufficient · 0
$3,49565,355 mi

Auburn, MA

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

2016 Nissan LEAF SV

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

2016 Nissan LEAF SV

Waterbury, CT

UnscoredInsufficient · 0
$6,69978,295 mi

Waterbury, CT

2017 Nissan LEAF S

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

2017 Nissan LEAF S

Worcester, MA

UnscoredInsufficient · 0
$6,99853,291 mi

Worcester, 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

Auburn, MA

UnscoredLimited · 8
$10,800210,000 mi

Comparison: 8 similar vehicles

Auburn, 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 · 3
$11,495135,986 mi

Comparison: 3 similar vehicles

Waterbury, CT

2021 Nissan Leaf S

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

2021 Nissan Leaf S

Westborough, MA

UnscoredInsufficient · 0
$13,99836,027 mi

Westborough, MA

2021 Nissan Leaf S

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

2021 Nissan Leaf S

Hartford, CT

UnscoredInsufficient · 0
$14,59937,783 mi

Hartford, CT

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
$14,75017,625 mi

Hartford, CT

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

Auburn, MA

UnscoredInsufficient · 3
$14,999124,000 mi

Comparison: 3 similar vehicles

Auburn, MA

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 · 4
$14,999122,420 mi

Comparison: 4 similar vehicles

Hartford, CT

2023 Nissan Leaf S

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

2023 Nissan Leaf S

Simsbury, CT

UnscoredInsufficient · 0
$15,79941,733 mi

Simsbury, CT

2021 Tesla Model 3 Base

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

2021 Tesla Model 3 Base

East Windsor, CT

UnscoredRobust · 63
$15,900124,588 mi

Comparison: 63 similar vehicles

East Windsor, 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

UnscoredInsufficient · 0
$15,99856,651 mi

Worcester, 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

Waterbury, CT

UnscoredInsufficient · 0
$16,52781,195 mi

Waterbury, 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 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 · 3
$16,900173,000 mi

Comparison: 3 similar vehicles

Wallingford, CT

2025 Nissan Leaf S

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

2025 Nissan Leaf S

North Haven, CT

UnscoredLimited · 6
$17,19414,704 mi

Comparison: 6 similar vehicles

North Haven, CT

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
$17,36429,776 mi

Cheshire, CT

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 · 11
$17,39884,371 mi

Market: $17,394 – $24,093

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 116 days listed (based on current market benchmarks)

Glastonbury, 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

Hartford, CT

UnscoredInsufficient · 0
$17,4755,316 mi

Hartford, 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

Northampton, MA

UnscoredModerate · 28
$17,98096,542 mi

Comparison: 28 similar vehicles

Northampton, MA

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: $14,998 – $16,989

Comparison: 30 similar vehicles

Priced ~6% above the typical market range for similar vehicles (based on current market benchmarks)

Waterbury, CT

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

UnscoredInsufficient · 3
$17,999111,990 mi

Comparison: 3 similar vehicles

Worcester, 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

Orange, MA

UnscoredInsufficient · 0
$18,49867,840 mi

Orange, MA

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

UnscoredLimited · 9
$18,49949,636 mi

Comparison: 9 similar vehicles

Bristol, 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
$18,59522,237 mi

Westborough, 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

UnscoredInsufficient · 0
$18,64036,829 mi

Bristol, CT

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

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 · 21
$19,100102,222 mi

Market: $6,900 – $25,000

Comparison: 21 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 47 days listed (based on current market benchmarks)

Hartford, CT

2023 Nissan Ariya Engage

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

2023 Nissan Ariya Engage

Northampton, MA

Fair PriceModerate · 49
$19,16335,291 mi

Market: $18,384 – $22,950

Comparison: 49 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 12 days listed (based on current market benchmarks)

Northampton, MA

2023 Nissan Ariya Engage

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

2023 Nissan Ariya Engage

Old Saybrook, CT

UnscoredInsufficient · 0
$19,39652,890 mi

Old Saybrook, 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
$19,44945,709 mi

East Hartford, CT

2023 Volkswagen ID.4 PRO S

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

2023 Volkswagen ID.4 PRO S

West Springfield, MA

Fair PriceLimited · 19
$19,78983,258 mi

Market: $17,850 – $22,113

Comparison: 19 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 80 days listed (based on current market benchmarks)

West Springfield, MA

2024 Tesla Model Y Long Range

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

2024 Tesla Model Y Long Range

Wallingford, CT

Salvage title
$19,900136,000 mi

Wallingford, CT

2023 Tesla Model 3 Base

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

2023 Tesla Model 3 Base

Wallingford, CT

Salvage title
$19,90039,000 mi

Wallingford, CT

2022 Chevrolet Bolt EV 2LT

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

2022 Chevrolet Bolt EV 2LT

Northampton, MA

UnscoredInsufficient · 0
$19,97554,271 mi

Northampton, 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

Northampton, MA

Great DealLimited · 14
$19,99517,327 mi

Market: $20,901 – $23,785

Comparison: 14 similar vehicles

Competitively priced ~4% below the typical range compared to similar vehicles · 3 days listed (based on current market benchmarks)

Northampton, MA

2023 Nissan Ariya Evolve+

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

2023 Nissan Ariya Evolve+

Hartford, CT

UnscoredLimited · 6
$19,99971,813 mi

Comparison: 6 similar vehicles

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

Auburn, MA

UnscoredInsufficient · 4
$20,00082,239 mi

Comparison: 4 similar vehicles

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

UnscoredLimited · 7
$20,29933,724 mi

Comparison: 7 similar vehicles

Hartford, 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

Old Saybrook, CT

UnscoredInsufficient · 0
$20,48723,458 mi

Old Saybrook, CT

2021 Tesla Model 3 Base

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

2021 Tesla Model 3 Base

Grafton, MA

Fair PriceLimited · 13
$20,495110,447 mi

Market: $19,990 – $26,546

Comparison: 13 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 42 days listed (based on current market benchmarks)

Grafton, 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

Bristol, CT

UnscoredLimited · 6
$20,49616,913 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

Worcester, MA

Fair PriceLimited · 13
$20,49817,343 mi

Market: $20,731 – $22,447

Comparison: 13 similar vehicles

Fairly priced — priced near the comparable range, but not far enough below it to qualify as a Great Deal · 78 days listed (based on current market benchmarks)

Worcester, 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

Westfield, MA

UnscoredLimited · 6
$20,77818,227 mi

Comparison: 6 similar vehicles

Westfield, 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

Meriden, CT

UnscoredInsufficient · 3
$20,79419,314 mi

Comparison: 3 similar vehicles

Meriden, CT

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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